diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index 7daf311..773b024 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -7,6 +7,7 @@ use Symfony\Component\ClassLoader\ApcUniversalClassLoader;
 use Symfony\Component\DependencyInjection\Container;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException as DependencyInjectionRuntimeException;
 use Symfony\Component\HttpFoundation\Request;
 use Drupal\Core\Language\Language;
 
@@ -1457,7 +1458,7 @@ function t($string, array $args = array(), array $options = array()) {
 
   // Merge in default.
   if (empty($options['langcode'])) {
-    $options['langcode'] = language_manager(LANGUAGE_TYPE_INTERFACE)->langcode;
+    $options['langcode'] = language(LANGUAGE_TYPE_INTERFACE)->langcode;
   }
   if (empty($options['context'])) {
     $options['context'] = '';
@@ -2604,13 +2605,13 @@ function get_t() {
 /**
  * Initializes all the defined language types.
  *
- * @see language_manager()
+ * @see language()
  */
 function drupal_language_initialize() {
   if (language_multilingual()) {
     $types = language_types_get_all();
     foreach ($types as $type) {
-      language_manager($type);
+      language($type);
     }
     // Allow modules to react on language system initialization in multilingual
     // environments.
@@ -2619,56 +2620,61 @@ function drupal_language_initialize() {
 }
 
 /**
- * Initializes the passed in language type.
+ * Returns the language object for a given language type.
  *
  * The 'language_manager' service is only available within the scope of a kernel
  * request. When it's not available, we return a default language object,
  * regardless of the type passed in.
  *
- * Note that this function is provided for legacy code that needs to get e.g.
- * the interface language outside the scope of a request. Code that runs within
- * the scope of a request should call
- * drupal_container()->get('language_manager')->getLanguage($type)
- * directly.
- *
  * @see Drupal\Core\Language\LanguageManager
  *
  * @param $type
- *   The type of language object needed, e.g. LANGUAGE_TYPE_INTERFACE. Passing
- *   NULL invokes a reset of the statically stored language type objects.
- */
-function language_manager($type = NULL) {
-  // Keep track of whether we are in a multilingual environment.
-  static $multilingual = FALSE;
-  // Keep track of whether the language_manager service is available.
-  static $language_manager_service = FALSE;
-  if ($multilingual && $language_manager_service) {
-    if (!$type) {
-      drupal_container()->get('language_manager')->reset();
-      return;
-    }
-    return drupal_container()->get('language_manager')->getLanguage($type);
-  }
-  if (language_multilingual()) {
-    $multilingual = TRUE;
+ *   The type of language object needed, e.g. LANGUAGE_TYPE_INTERFACE.
+ * @param $reset
+ *   TRUE to reset the statically cached language object for the type, or for
+ *   all types if $type is NULL.
+ */
+function language($type, $reset = FALSE) {
+  // We don't use drupal_static() here because resetting is not a simple case of
+  // drupal_static_reset().
+  static $languages = array();
+
+  // Reset the language manager's cache and our own.
+  if ($reset) {
     if (drupal_container()->has('language_manager')) {
-      $language_manager_service = TRUE;
-      return drupal_container()->get('language_manager')->getLanguage($type);
+      drupal_container()->get('language_manager')->reset($type);
+    }
+    if (!isset($type)) {
+      $languages = array();
+    }
+    elseif (isset($languages[$type])) {
+      unset($languages[$type]);
     }
   }
-  // We can't use drupal_static() here because resetting is not a simple case of
-  // drupal_static_reset().
-  static $languages;
-  // If no type was passed in, reset the languages array.
-  if (!$type) {
-    $languages = array();
+
+  // If no type is passed (most likely when resetting all types), return.
+  if (!isset($type)) {
+    return;
+  }
+
+  // When the language_manager service exists (is both defined and the 'request'
+  // scope is active in the container), use it to get the language. Otherwise
+  // return the default language.
+  try {
+    $language_manager = drupal_container()->get('language_manager', Container::NULL_ON_INVALID_REFERENCE);
   }
-  // If this is not a multilingual environment or we have not yet entered the
-  // request scope, just use the default language regardless of $type.
-  if (!isset($languages[$type])) {
-    $languages[$type] = language_default();
+  catch (DependencyInjectionRuntimeException $e) {
+  }
+
+  if (isset($language_manager)) {
+    return $language_manager->getLanguage($type);
+  }
+  else {
+    if (!isset($languages[$type])) {
+      $languages[$type] = language_default();
+    }
+    return $languages[$type];
   }
-  return $languages[$type];
 }
 
 /**
diff --git a/core/includes/common.inc b/core/includes/common.inc
index 7ba47fb..b354b04 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -1599,7 +1599,7 @@ function filter_xss_bad_protocol($string, $decode = TRUE) {
  * Arbitrary elements may be added using the $args associative array.
  */
 function format_rss_channel($title, $link, $description, $items, $langcode = NULL, $args = array()) {
-  $langcode = $langcode ? $langcode : language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+  $langcode = $langcode ? $langcode : language(LANGUAGE_TYPE_CONTENT)->langcode;
 
   $output = "<channel>\n";
   $output .= ' <title>' . check_plain($title) . "</title>\n";
@@ -1901,7 +1901,7 @@ function format_date($timestamp, $type = 'medium', $format = '', $timezone = NUL
   }
 
   if (empty($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_INTERFACE)->langcode;
+    $langcode = language(LANGUAGE_TYPE_INTERFACE)->langcode;
   }
 
   switch ($type) {
@@ -2077,7 +2077,7 @@ function _format_date_callback(array $matches = NULL, $new_langcode = NULL) {
  *   - 'language': An optional language object. If the path being linked to is
  *     internal to the site, $options['language'] is used to look up the alias
  *     for the URL. If $options['language'] is omitted, the language will be
- *     obtained from language_manager(LANGUAGE_TYPE_URL).
+ *     obtained from language(LANGUAGE_TYPE_URL).
  *   - 'https': Whether this URL should point to a secure location. If not
  *     defined, the current scheme is used, so the user stays on http or https
  *     respectively. TRUE enforces HTTPS and FALSE enforces HTTP, but HTTPS can
@@ -2322,7 +2322,7 @@ function l($text, $path, array $options = array()) {
 
   // Append active class.
   if (($path == current_path() || ($path == '<front>' && drupal_is_front_page())) &&
-      (empty($options['language']) || $options['language']->langcode == language_manager(LANGUAGE_TYPE_URL)->langcode)) {
+      (empty($options['language']) || $options['language']->langcode == language(LANGUAGE_TYPE_URL)->langcode)) {
     $options['attributes']['class'][] = 'active';
   }
 
@@ -6017,7 +6017,7 @@ function drupal_render_cid_parts($granularity = NULL) {
   // part.
   if (language_multilingual()) {
     foreach (language_types_get_configurable() as $language_type) {
-      $cid_parts[] = language_manager($language_type)->langcode;
+      $cid_parts[] = language($language_type)->langcode;
     }
   }
 
diff --git a/core/includes/menu.inc b/core/includes/menu.inc
index 0b62f51..2fd7b52 100644
--- a/core/includes/menu.inc
+++ b/core/includes/menu.inc
@@ -1069,7 +1069,7 @@ function menu_tree_output($tree) {
  */
 function menu_tree_all_data($menu_name, $link = NULL, $max_depth = NULL) {
   $tree = &drupal_static(__FUNCTION__, array());
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Use $mlid as a flag for whether the data being loaded is for the whole tree.
   $mlid = isset($link['mlid']) ? $link['mlid'] : 0;
@@ -1180,7 +1180,7 @@ function menu_tree_get_path($menu_name) {
 function menu_tree_page_data($menu_name, $max_depth = NULL, $only_active_trail = FALSE) {
   $tree = &drupal_static(__FUNCTION__, array());
 
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Check if the active trail has been overridden for this menu tree.
   $active_path = menu_tree_get_path($menu_name);
@@ -1336,7 +1336,7 @@ function menu_build_tree($menu_name, array $parameters = array()) {
 function _menu_build_tree($menu_name, array $parameters = array()) {
   // Static cache of already built menu trees.
   $trees = &drupal_static(__FUNCTION__, array());
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Build the cache id; sort parents to prevent duplicate storage and remove
   // default parameter values.
diff --git a/core/includes/path.inc b/core/includes/path.inc
index 6f28125..36556a0 100644
--- a/core/includes/path.inc
+++ b/core/includes/path.inc
@@ -82,7 +82,7 @@ function drupal_lookup_path($action, $path = '', $langcode = NULL) {
   // language. If we used a language different from the one conveyed by the
   // requested URL, we might end up being unable to check if there is a path
   // alias matching the URL path.
-  $langcode = $langcode ? $langcode : language_manager(LANGUAGE_TYPE_URL)->langcode;
+  $langcode = $langcode ? $langcode : language(LANGUAGE_TYPE_URL)->langcode;
 
   if ($action == 'wipe') {
     $cache = array();
diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 157dc18..2c17020 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -1627,7 +1627,7 @@ function theme_link($variables) {
  *     http://www.w3.org/TR/WCAG-TECHS/H42.html for more information.
  */
 function theme_links($variables) {
-  $language_url = language_manager(LANGUAGE_TYPE_URL);
+  $language_url = language(LANGUAGE_TYPE_URL);
 
   $links = $variables['links'];
   $attributes = $variables['attributes'];
@@ -2398,7 +2398,7 @@ function _template_preprocess_default_variables() {
  * @see html.tpl.php
  */
 function template_preprocess_html(&$variables) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Compile a list of classes that are going to be applied to the body element.
   // This allows advanced theming based on context (home page, node of certain type, etc.).
@@ -2530,7 +2530,7 @@ function template_preprocess_html(&$variables) {
  * @see page.tpl.php
  */
 function template_preprocess_page(&$variables) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
   $site_config = config('system.site');
 
   // Move some variables to the top level for themer convenience and template cleanliness.
@@ -2711,7 +2711,7 @@ function theme_get_suggestions($args, $base, $delimiter = '__') {
  */
 function template_preprocess_maintenance_page(&$variables) {
   global $theme;
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
   // Retrieve the theme data to list all available regions.
   $theme_data = list_themes();
   $regions = $theme_data[$theme]->info['regions'];
diff --git a/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php
index 56d5675..8044a5c 100644
--- a/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/FinishResponseSubscriber.php
@@ -33,7 +33,7 @@ class FinishResponseSubscriber implements EventSubscriberInterface {
     // @todo Receive the LanguageManager object as a constructor argument when
     //   the dependency injection container allows for it performantly:
     //   http://drupal.org/node/1706064.
-    $response->headers->set('Content-language', language_manager(LANGUAGE_TYPE_INTERFACE)->langcode);
+    $response->headers->set('Content-language', language(LANGUAGE_TYPE_INTERFACE)->langcode);
 
     // Because pages are highly dynamic, set the last-modified time to now
     // since the page is in fact being regenerated right now.
diff --git a/core/lib/Drupal/Core/Language/LanguageManager.php b/core/lib/Drupal/Core/Language/LanguageManager.php
index 7514b74..f00d753 100644
--- a/core/lib/Drupal/Core/Language/LanguageManager.php
+++ b/core/lib/Drupal/Core/Language/LanguageManager.php
@@ -14,8 +14,8 @@ use Symfony\Component\HttpFoundation\Request;
  *
  * This service is dependent on the 'request' service and can therefore pass the
  * Request object to the code that deals with each particular language type.
- * This means the Request can be used directly for things like url-based language
- * negotiation.
+ * This means the Request can be used directly for things like url-based
+ * language negotiation.
  */
 class LanguageManager {
 
@@ -32,12 +32,22 @@ class LanguageManager {
     }
 
     // @todo Objectify the language system so that we don't have to do this.
-    include_once DRUPAL_ROOT . '/core/includes/language.inc';
-    $this->languages[$type] = language_types_initialize($type, $this->request);
+    if (language_multilingual()) {
+      include_once DRUPAL_ROOT . '/core/includes/language.inc';
+      $this->languages[$type] = language_types_initialize($type, $this->request);
+    }
+    else {
+      $this->languages[$type] = language_default();
+    }
     return $this->languages[$type];
   }
 
-  function reset() {
-    $this->languages = array();
+  public function reset($type = NULL) {
+    if (!isset($type)) {
+      $this->languages = array();
+    }
+    elseif (isset($this->languages[$type])) {
+      unset($this->languages[$type]);
+    }
   }
 }
diff --git a/core/modules/block/block.api.php b/core/modules/block/block.api.php
index bf166c9..858a21b 100644
--- a/core/modules/block/block.api.php
+++ b/core/modules/block/block.api.php
@@ -329,7 +329,7 @@ function hook_block_view_MODULE_DELTA_alter(&$data, $block) {
  */
 function hook_block_list_alter(&$blocks) {
   global $theme_key;
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // This example shows how to achieve language specific visibility setting for
   // blocks.
diff --git a/core/modules/block/block.module b/core/modules/block/block.module
index 0b90bda..c07b73d 100644
--- a/core/modules/block/block.module
+++ b/core/modules/block/block.module
@@ -880,7 +880,7 @@ function block_block_list_alter(&$blocks) {
       continue;
     }
     foreach ($block_langcodes[$block->module][$block->delta] as $language_type => $langcodes) {
-      if (isset($langcodes[language_manager($language_type)->langcode])) {
+      if (isset($langcodes[language($language_type)->langcode])) {
         // Found a language type - langcode combination in the configuration
         // that is applicable to the current request.
         continue 2;
diff --git a/core/modules/book/book.module b/core/modules/book/book.module
index 949f81c..0b46982 100644
--- a/core/modules/book/book.module
+++ b/core/modules/book/book.module
@@ -1224,7 +1224,7 @@ function book_toc($bid, $depth_limit, $exclude = array()) {
  */
 function template_preprocess_book_export_html(&$variables) {
   global $base_url;
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $variables['title'] = check_plain($variables['title']);
   $variables['base_url'] = $base_url;
diff --git a/core/modules/comment/comment.module b/core/modules/comment/comment.module
index b46beff..39faf90 100644
--- a/core/modules/comment/comment.module
+++ b/core/modules/comment/comment.module
@@ -959,7 +959,7 @@ function comment_prepare_thread(&$comments) {
  */
 function comment_view(Comment $comment, Node $node, $view_mode = 'full', $langcode = NULL) {
   if (!isset($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+    $langcode = language(LANGUAGE_TYPE_CONTENT)->langcode;
   }
 
   // Populate $comment->content with a render() array.
@@ -1025,7 +1025,7 @@ function comment_view(Comment $comment, Node $node, $view_mode = 'full', $langco
  */
 function comment_build_content(Comment $comment, Node $node, $view_mode = 'full', $langcode = NULL) {
   if (!isset($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+    $langcode = language(LANGUAGE_TYPE_CONTENT)->langcode;
   }
 
   // Remove previously built content, if exists.
@@ -1683,7 +1683,7 @@ function comment_forms() {
  */
 function comment_form($form, &$form_state, Comment $comment) {
   global $user;
-  $language_content = language_manager(LANGUAGE_TYPE_CONTENT);
+  $language_content = language(LANGUAGE_TYPE_CONTENT);
 
   // During initial form build, add the comment entity to the form state for
   // use during form building and processing. During a rebuild, use what is in
diff --git a/core/modules/comment/lib/Drupal/comment/Tests/CommentTokenReplaceTest.php b/core/modules/comment/lib/Drupal/comment/Tests/CommentTokenReplaceTest.php
index 50a7b55..383786c 100644
--- a/core/modules/comment/lib/Drupal/comment/Tests/CommentTokenReplaceTest.php
+++ b/core/modules/comment/lib/Drupal/comment/Tests/CommentTokenReplaceTest.php
@@ -23,7 +23,7 @@ class CommentTokenReplaceTest extends CommentTestBase {
    * Creates a comment, then tests the tokens generated from it.
    */
   function testCommentTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
     $url_options = array(
       'absolute' => TRUE,
       'language' => $language_interface,
diff --git a/core/modules/contact/contact.pages.inc b/core/modules/contact/contact.pages.inc
index 8962298..92d73bc 100644
--- a/core/modules/contact/contact.pages.inc
+++ b/core/modules/contact/contact.pages.inc
@@ -150,7 +150,7 @@ function contact_site_form_validate($form, &$form_state) {
  */
 function contact_site_form_submit($form, &$form_state) {
   global $user;
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $values = $form_state['values'];
   $values['sender'] = $user;
@@ -292,7 +292,7 @@ function contact_personal_form($form, &$form_state, $recipient) {
  */
 function contact_personal_form_submit($form, &$form_state) {
   global $user;
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $values = $form_state['values'];
   $values['sender'] = $user;
diff --git a/core/modules/entity/entity.module b/core/modules/entity/entity.module
index 53f5fe4..dec1913 100644
--- a/core/modules/entity/entity.module
+++ b/core/modules/entity/entity.module
@@ -48,7 +48,7 @@ function entity_modules_disabled() {
  * @see hook_entity_info_alter()
  */
 function entity_get_info($entity_type = NULL) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Use the advanced drupal_static() pattern, since this is called very often.
   static $drupal_static_fast;
diff --git a/core/modules/field/field.info.inc b/core/modules/field/field.info.inc
index 0f04c56..a70796f 100644
--- a/core/modules/field/field.info.inc
+++ b/core/modules/field/field.info.inc
@@ -67,7 +67,7 @@ function field_info_cache_clear() {
  * @see _field_info_collate_types_reset()
  */
 function _field_info_collate_types() {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Use the advanced drupal_static() pattern, since this is called very often.
   static $drupal_static_fast;
diff --git a/core/modules/field/field.multilingual.inc b/core/modules/field/field.multilingual.inc
index 533c881..796f68a 100644
--- a/core/modules/field/field.multilingual.inc
+++ b/core/modules/field/field.multilingual.inc
@@ -258,7 +258,7 @@ function field_valid_language($langcode, $default = TRUE) {
   if (in_array($langcode, $languages)) {
     return $langcode;
   }
-  return $default ? language_default()->langcode : language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+  return $default ? language_default()->langcode : language(LANGUAGE_TYPE_CONTENT)->langcode;
 }
 
 /**
diff --git a/core/modules/file/lib/Drupal/file/Tests/FileTokenReplaceTest.php b/core/modules/file/lib/Drupal/file/Tests/FileTokenReplaceTest.php
index c7df161..4efd9c5 100644
--- a/core/modules/file/lib/Drupal/file/Tests/FileTokenReplaceTest.php
+++ b/core/modules/file/lib/Drupal/file/Tests/FileTokenReplaceTest.php
@@ -23,7 +23,7 @@ class FileTokenReplaceTest extends FileFieldTestBase {
    * Creates a file, then tests the tokens generated from it.
    */
   function testFileTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
     $url_options = array(
       'absolute' => TRUE,
       'language' => $language_interface,
diff --git a/core/modules/filter/filter.module b/core/modules/filter/filter.module
index dc57eeb..4d9bfef 100644
--- a/core/modules/filter/filter.module
+++ b/core/modules/filter/filter.module
@@ -399,7 +399,7 @@ function filter_modules_disabled($modules) {
  * @see filter_formats_reset()
  */
 function filter_formats($account = NULL) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
   $formats = &drupal_static(__FUNCTION__, array());
 
   // All available formats are cached for performance.
diff --git a/core/modules/image/image.module b/core/modules/image/image.module
index ac12e54..fef8c93 100644
--- a/core/modules/image/image.module
+++ b/core/modules/image/image.module
@@ -965,7 +965,7 @@ function image_style_path($style_name, $uri) {
  * @see image_effect_definition_load()
  */
 function image_effect_definitions() {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // hook_image_effect_info() includes translated strings, so each language is
   // cached separately.
diff --git a/core/modules/language/language.module b/core/modules/language/language.module
index da0365f..3fb39e0 100644
--- a/core/modules/language/language.module
+++ b/core/modules/language/language.module
@@ -243,7 +243,7 @@ function language_delete($langcode) {
  * and checks to see if a related right to left CSS file should be included.
  */
 function language_css_alter(&$css) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // If the current language is RTL, add the CSS file with the RTL overrides.
   if ($language_interface->direction == LANGUAGE_RTL) {
diff --git a/core/modules/language/language.negotiation.inc b/core/modules/language/language.negotiation.inc
index 4e6cda8..48a8083 100644
--- a/core/modules/language/language.negotiation.inc
+++ b/core/modules/language/language.negotiation.inc
@@ -52,7 +52,7 @@ const LANGUAGE_NEGOTIATION_URL_DOMAIN = 1;
  *   The current interface language code.
  */
 function language_from_interface() {
-  return language_manager(LANGUAGE_TYPE_INTERFACE)->langcode;
+  return language(LANGUAGE_TYPE_INTERFACE)->langcode;
 }
 
 /**
@@ -304,7 +304,7 @@ function language_url_fallback($language = NULL, $request = NULL, $language_type
     return $default->langcode;
   }
   else {
-    $langcode = language_manager($language_type)->langcode;
+    $langcode = language($language_type)->langcode;
     return $langcode;
   }
 }
@@ -335,7 +335,7 @@ function language_switcher_url($type, $path) {
  */
 function language_switcher_session($type, $path) {
   $param = variable_get('language_negotiation_session_param', 'language');
-  $language_query = isset($_SESSION[$param]) ? $_SESSION[$param] : language_manager($type)->langcode;
+  $language_query = isset($_SESSION[$param]) ? $_SESSION[$param] : language($type)->langcode;
 
   $languages = language_list();
   $links = array();
@@ -378,7 +378,7 @@ function language_url_rewrite_url(&$path, &$options) {
 
   // Language can be passed as an option, or we go for current URL language.
   if (!isset($options['language'])) {
-    $language_url = language_manager(LANGUAGE_TYPE_URL);
+    $language_url = language(LANGUAGE_TYPE_URL);
     $options['language'] = $language_url;
   }
   // We allow only enabled languages here.
diff --git a/core/modules/language/lib/Drupal/language/Tests/LanguageDependencyInjectionTest.php b/core/modules/language/lib/Drupal/language/Tests/LanguageDependencyInjectionTest.php
index bd940d3..94015dc 100644
--- a/core/modules/language/lib/Drupal/language/Tests/LanguageDependencyInjectionTest.php
+++ b/core/modules/language/lib/Drupal/language/Tests/LanguageDependencyInjectionTest.php
@@ -27,7 +27,7 @@ class LanguageDependencyInjectionTest extends WebTestBase {
     parent::setUp('language');
 
     // Ensure we are building a new Language object for each test.
-    language_manager();
+    language(NULL, TRUE);
   }
 
 
@@ -41,7 +41,7 @@ class LanguageDependencyInjectionTest extends WebTestBase {
     drupal_language_initialize();
 
     $expected = language_default();
-    $result = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $result = language(LANGUAGE_TYPE_INTERFACE);
     foreach ($expected as $property => $value) {
       $this->assertEqual($expected->$property, $result->$property, t('The dependency injected language object %prop property equals the new Language object %prop property.', array('%prop' => $property)));
     }
@@ -71,7 +71,7 @@ class LanguageDependencyInjectionTest extends WebTestBase {
     // The langauge system creates a Language object which contains the
     // same properties as the new default language object.
     $expected = new Language($new_language_default);
-    $result = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $result = language(LANGUAGE_TYPE_INTERFACE);
     foreach ($expected as $property => $value) {
       $this->assertEqual($expected->$property, $result->$property, t('The dependency injected language object %prop property equals the default language object %prop property.', array('%prop' => $property)));
     }
diff --git a/core/modules/language/tests/language_test.module b/core/modules/language/tests/language_test.module
index cc2e8ad..be0a8c0 100644
--- a/core/modules/language/tests/language_test.module
+++ b/core/modules/language/tests/language_test.module
@@ -22,8 +22,8 @@ function language_test_boot() {
  */
 function language_test_init() {
   language_test_store_language_negotiation();
-  if (isset(language_manager(LANGUAGE_TYPE_INTERFACE)->langcode) && isset(language_manager(LANGUAGE_TYPE_INTERFACE)->method_id)) {
-    drupal_set_message(t('Language negotiation method: @name', array('@name' => language_manager(LANGUAGE_TYPE_INTERFACE)->method_id)));
+  if (isset(language(LANGUAGE_TYPE_INTERFACE)->langcode) && isset(language(LANGUAGE_TYPE_INTERFACE)->method_id)) {
+    drupal_set_message(t('Language negotiation method: @name', array('@name' => language(LANGUAGE_TYPE_INTERFACE)->method_id)));
   }
 }
 
@@ -95,7 +95,7 @@ function language_test_language_negotiation_info_alter(array &$negotiation_info)
 function language_test_store_language_negotiation() {
   $last = array();
   foreach (language_types_get_all() as $type) {
-    $last[$type] = language_manager($type)->langcode;
+    $last[$type] = language($type)->langcode;
   }
   variable_set('language_test_language_negotiation_last', $last);
 }
diff --git a/core/modules/locale/lib/Drupal/locale/Tests/LocaleUninstallTest.php b/core/modules/locale/lib/Drupal/locale/Tests/LocaleUninstallTest.php
index c52f483..9092bf4 100644
--- a/core/modules/locale/lib/Drupal/locale/Tests/LocaleUninstallTest.php
+++ b/core/modules/locale/lib/Drupal/locale/Tests/LocaleUninstallTest.php
@@ -46,12 +46,11 @@ class LocaleUninstallTest extends WebTestBase {
       'default' => $this->langcode == 'fr',
     );
     language_save($language);
-    // Reset the language_manager so that the language interface object gets
-    // freshly initialized.
-    language_manager();
+    // Reset statically cached language objects.
+    language(NULL, TRUE);
     // Check the UI language.
     drupal_language_initialize();
-    $this->assertEqual(language_manager(LANGUAGE_TYPE_INTERFACE)->langcode, $this->langcode, t('Current language: %lang', array('%lang' => language_manager(LANGUAGE_TYPE_INTERFACE)->langcode)));
+    $this->assertEqual(language(LANGUAGE_TYPE_INTERFACE)->langcode, $this->langcode, t('Current language: %lang', array('%lang' => language(LANGUAGE_TYPE_INTERFACE)->langcode)));
 
     // Enable multilingual workflow option for articles.
     variable_set('node_type_language_hidden_article',FALSE);
@@ -93,12 +92,11 @@ class LocaleUninstallTest extends WebTestBase {
 
     // Visit the front page.
     $this->drupalGet('');
-    // Reset the language_manager so that the language interface object gets
-    // freshly initialized.
-    language_manager();
+    // Reset statically cached language objects.
+    language(NULL, TRUE);
     // Check the init language logic.
     drupal_language_initialize();
-    $this->assertEqual(language_manager(LANGUAGE_TYPE_INTERFACE)->langcode, 'en', t('Language after uninstall: %lang', array('%lang' => language_manager(LANGUAGE_TYPE_INTERFACE)->langcode)));
+    $this->assertEqual(language(LANGUAGE_TYPE_INTERFACE)->langcode, 'en', t('Language after uninstall: %lang', array('%lang' => language(LANGUAGE_TYPE_INTERFACE)->langcode)));
 
     // Check JavaScript files deletion.
     $this->assertTrue($result = !file_exists($js_file), t('JavaScript file deleted: %file', array('%file' => $result ? $js_file : t('found'))));
diff --git a/core/modules/locale/locale.module b/core/modules/locale/locale.module
index ad5ad91..f7c22c1 100644
--- a/core/modules/locale/locale.module
+++ b/core/modules/locale/locale.module
@@ -232,7 +232,7 @@ function locale_language_delete($language) {
  *   Language code to use for the lookup.
  */
 function locale($string = NULL, $context = NULL, $langcode = NULL) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Use the advanced drupal_static() pattern, since this is called very often.
   static $drupal_static_fast;
@@ -280,7 +280,7 @@ function locale_reset() {
  *   plural formula.
  */
 function locale_get_plural($count, $langcode = NULL) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   // Used to locally cache the plural formulas for all languages.
   $plural_formulas = &drupal_static(__FUNCTION__, array());
@@ -366,7 +366,7 @@ function locale_system_update($components) {
  * file if necessary, and adds it to the page.
  */
 function locale_js_alter(&$javascript) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $dir = 'public://' . variable_get('locale_js_directory', 'languages');
   $parsed = variable_get('javascript_parsed', array());
@@ -426,7 +426,7 @@ function locale_js_alter(&$javascript) {
  */
 function locale_library_info_alter(&$libraries, $module) {
   if ($module == 'system' && isset($libraries['jquery.ui.datepicker'])) {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
     // locale.datepicker.js should be added in the JS_LIBRARY group, so that
     // this attach behavior will execute early. JS_LIBRARY is the default for
     // hook_library_info_alter(), thus does not have to be specified explicitly.
@@ -572,7 +572,7 @@ function locale_form_system_file_system_settings_alter(&$form, $form_state) {
  */
 function locale_preprocess_node(&$variables) {
   if ($variables['langcode'] != LANGUAGE_NOT_SPECIFIED) {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     $node_language = language_load($variables['langcode']);
     if ($node_language->langcode != $language_interface->langcode) {
@@ -771,7 +771,7 @@ function _locale_invalidate_js($langcode = NULL) {
  */
 function _locale_rebuild_js($langcode = NULL) {
   if (!isset($langcode)) {
-    $language = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language = language(LANGUAGE_TYPE_INTERFACE);
   }
   else {
     // Get information about the locale.
diff --git a/core/modules/locale/locale.pages.inc b/core/modules/locale/locale.pages.inc
index 25f45fc..539c382 100644
--- a/core/modules/locale/locale.pages.inc
+++ b/core/modules/locale/locale.pages.inc
@@ -103,7 +103,7 @@ function locale_translate_filters() {
   }
 
   // Pick the current interface language code for the filter.
-  $default_langcode = language_manager(LANGUAGE_TYPE_INTERFACE)->langcode;
+  $default_langcode = language(LANGUAGE_TYPE_INTERFACE)->langcode;
   if (!isset($language_options[$default_langcode])) {
     $available_langcodes = array_keys($language_options);
     $default_langcode = array_shift($available_langcodes);
diff --git a/core/modules/node/lib/Drupal/node/Tests/NodeTokenReplaceTest.php b/core/modules/node/lib/Drupal/node/Tests/NodeTokenReplaceTest.php
index 3eeaf26..4174ee6 100644
--- a/core/modules/node/lib/Drupal/node/Tests/NodeTokenReplaceTest.php
+++ b/core/modules/node/lib/Drupal/node/Tests/NodeTokenReplaceTest.php
@@ -23,7 +23,7 @@ class NodeTokenReplaceTest extends NodeTestBase {
    * Creates a node, then tests the tokens generated from it.
    */
   function testNodeTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
     $url_options = array(
       'absolute' => TRUE,
       'language' => $language_interface,
diff --git a/core/modules/node/node.module b/core/modules/node/node.module
index d1dfdc2..2c94427 100644
--- a/core/modules/node/node.module
+++ b/core/modules/node/node.module
@@ -673,7 +673,7 @@ function node_field_extra_fields() {
 function node_type_get_default_langcode($node_type) {
   $default_value = variable_get('node_type_language_default_' . $node_type, 'site_default');
 
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   if ($default_value == LANGUAGE_NOT_SPECIFIED) {
     return LANGUAGE_NOT_SPECIFIED;
@@ -763,7 +763,7 @@ function node_type_update_nodes($old_type, $type) {
  *   type object by $type->disabled being set to TRUE.
  */
 function _node_types_build($rebuild = FALSE) {
-  $cid = 'node_types:' . language_manager(LANGUAGE_TYPE_INTERFACE)->langcode;
+  $cid = 'node_types:' . language(LANGUAGE_TYPE_INTERFACE)->langcode;
 
   if (!$rebuild) {
     $_node_types = &drupal_static(__FUNCTION__);
@@ -1206,7 +1206,7 @@ function node_revision_delete($revision_id) {
  */
 function node_view(Node $node, $view_mode = 'full', $langcode = NULL) {
   if (!isset($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+    $langcode = language(LANGUAGE_TYPE_CONTENT)->langcode;
   }
 
   // Populate $node->content with a render() array.
@@ -1267,7 +1267,7 @@ function node_view(Node $node, $view_mode = 'full', $langcode = NULL) {
  */
 function node_build_content(Node $node, $view_mode = 'full', $langcode = NULL) {
   if (!isset($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+    $langcode = language(LANGUAGE_TYPE_CONTENT)->langcode;
   }
 
   // Remove previously built content, if exists.
@@ -2470,7 +2470,7 @@ function node_block_list_alter(&$blocks) {
  */
 function node_feed($nids = FALSE, $channel = array()) {
   global $base_url;
-  $language_content = language_manager(LANGUAGE_TYPE_CONTENT);
+  $language_content = language(LANGUAGE_TYPE_CONTENT);
   $rss_config = config('system.rss');
 
   if ($nids === FALSE) {
diff --git a/core/modules/openid/openid.inc b/core/modules/openid/openid.inc
index f6dc2a5..9f8dcac 100644
--- a/core/modules/openid/openid.inc
+++ b/core/modules/openid/openid.inc
@@ -83,7 +83,7 @@ function openid_redirect_http($url, $message) {
  * Creates a js auto-submit redirect for (for the 2.x protocol)
  */
 function openid_redirect($url, $message) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">' . "\n";
   $output .= '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="' . $language_interface->langcode . '" lang="' . $language_interface->langcode . '">' . "\n";
diff --git a/core/modules/poll/lib/Drupal/poll/Tests/PollTokenReplaceTest.php b/core/modules/poll/lib/Drupal/poll/Tests/PollTokenReplaceTest.php
index 56e0854..ea3e7dc 100644
--- a/core/modules/poll/lib/Drupal/poll/Tests/PollTokenReplaceTest.php
+++ b/core/modules/poll/lib/Drupal/poll/Tests/PollTokenReplaceTest.php
@@ -23,7 +23,7 @@ class PollTokenReplaceTest extends PollTestBase {
    * Creates a poll, then tests the tokens generated from it.
    */
   function testPollTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Craete a poll with three choices.
     $title = $this->randomName();
diff --git a/core/modules/search/search.pages.inc b/core/modules/search/search.pages.inc
index 9e24c2a..337fe85 100644
--- a/core/modules/search/search.pages.inc
+++ b/core/modules/search/search.pages.inc
@@ -104,7 +104,7 @@ function template_preprocess_search_results(&$variables) {
  * @see search-result.tpl.php
  */
 function template_preprocess_search_result(&$variables) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $result = $variables['result'];
   $variables['url'] = check_url($result['link']);
diff --git a/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php b/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php
index cccd011..f58e1de 100644
--- a/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php
+++ b/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php
@@ -680,7 +680,7 @@ abstract class TestBase {
    */
   protected function prepareEnvironment() {
     global $user, $conf;
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Backup current in-memory configuration.
     $this->originalConf = $conf;
@@ -748,7 +748,7 @@ abstract class TestBase {
    */
   protected function tearDown() {
     global $user, $conf;
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // In case a fatal error occurred that was not in the test process read the
     // log to pick up any fatal errors.
diff --git a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
index eda2365..877c3cb 100644
--- a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
+++ b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
@@ -579,7 +579,7 @@ abstract class WebTestBase extends TestBase {
    */
   protected function setUp() {
     global $user, $conf;
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Create the database prefix for this test.
     $this->prepareDatabasePrefix();
diff --git a/core/modules/statistics/lib/Drupal/statistics/Tests/StatisticsTokenReplaceTest.php b/core/modules/statistics/lib/Drupal/statistics/Tests/StatisticsTokenReplaceTest.php
index fcfc21e..516c292 100644
--- a/core/modules/statistics/lib/Drupal/statistics/Tests/StatisticsTokenReplaceTest.php
+++ b/core/modules/statistics/lib/Drupal/statistics/Tests/StatisticsTokenReplaceTest.php
@@ -23,7 +23,7 @@ class StatisticsTokenReplaceTest extends StatisticsTestBase {
    * Creates a node, then tests the statistics tokens generated from it.
    */
   function testStatisticsTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Create user and node.
     $user = $this->drupalCreateUser(array('create page content'));
diff --git a/core/modules/system/language.api.php b/core/modules/system/language.api.php
index 8a13da3..16d0794 100644
--- a/core/modules/system/language.api.php
+++ b/core/modules/system/language.api.php
@@ -26,7 +26,7 @@
 function hook_language_init() {
   global $conf;
 
-  switch (language_manager(LANGUAGE_TYPE_INTERFACE)->langcode) {
+  switch (language(LANGUAGE_TYPE_INTERFACE)->langcode) {
     case 'it':
       $conf['system.site']['name'] = 'Il mio sito Drupal';
       break;
@@ -52,7 +52,7 @@ function hook_language_init() {
  *   The current path.
  */
 function hook_language_switch_links_alter(array &$links, $type, $path) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   if ($type == LANGUAGE_TYPE_CONTENT && isset($links[$language_interface->langcode])) {
     foreach ($links[$language_interface->langcode] as $link) {
diff --git a/core/modules/system/lib/Drupal/system/Tests/Common/CascadingStylesheetsTest.php b/core/modules/system/lib/Drupal/system/Tests/Common/CascadingStylesheetsTest.php
index 8452c41..5742a7e 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Common/CascadingStylesheetsTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Common/CascadingStylesheetsTest.php
@@ -222,7 +222,7 @@ class CascadingStylesheetsTest extends WebTestBase {
    */
   function testAlter() {
     // Switch the language to a right to left language and add system.base.css.
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
     $language_interface->direction = LANGUAGE_RTL;
     $path = drupal_get_path('module', 'system');
     drupal_add_css($path . '/system.base.css');
diff --git a/core/modules/system/lib/Drupal/system/Tests/Common/FormatDateTest.php b/core/modules/system/lib/Drupal/system/Tests/Common/FormatDateTest.php
index 5bfb9b6..ab94150 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Common/FormatDateTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Common/FormatDateTest.php
@@ -72,7 +72,7 @@ class FormatDateTest extends WebTestBase {
   function testFormatDate() {
     global $user;
 
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     $timestamp = strtotime('2007-03-26T00:00:00+00:00');
     $this->assertIdentical(format_date($timestamp, 'custom', 'l, d-M-y H:i:s T', 'America/Los_Angeles', 'en'), 'Sunday, 25-Mar-07 17:00:00 PDT', t('Test all parameters.'));
diff --git a/core/modules/system/lib/Drupal/system/Tests/Mail/MailTest.php b/core/modules/system/lib/Drupal/system/Tests/Mail/MailTest.php
index ac1e611..00a164c 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Mail/MailTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Mail/MailTest.php
@@ -41,7 +41,7 @@ class MailTest extends WebTestBase implements MailInterface {
    * Assert that the pluggable mail system is functional.
    */
   public function testPluggableFramework() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Use MailTestCase for sending a message.
     $message = drupal_mail('simpletest', 'mail_test', 'testing@example.com', $language_interface);
diff --git a/core/modules/system/lib/Drupal/system/Tests/System/TokenReplaceTest.php b/core/modules/system/lib/Drupal/system/Tests/System/TokenReplaceTest.php
index a4e2917..16eb0f2 100644
--- a/core/modules/system/lib/Drupal/system/Tests/System/TokenReplaceTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/System/TokenReplaceTest.php
@@ -30,7 +30,7 @@ class TokenReplaceTest extends WebTestBase {
     $node = $this->drupalCreateNode(array('uid' => $account->uid));
     $node->title = '<blink>Blinking Text</blink>';
     global $user;
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     $source  = '[node:title]';         // Title of the node we passed in
     $source .= '[node:author:name]';   // Node author's name
@@ -75,7 +75,7 @@ class TokenReplaceTest extends WebTestBase {
    * Test whether token-replacement works in various contexts.
    */
   function testSystemTokenRecognition() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Generate prefixes and suffixes for the token context.
     $tests = array(
@@ -104,7 +104,7 @@ class TokenReplaceTest extends WebTestBase {
    * Tests the generation of all system site information tokens.
    */
   function testSystemSiteTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
     $url_options = array(
       'absolute' => TRUE,
       'language' => $language_interface,
@@ -147,7 +147,7 @@ class TokenReplaceTest extends WebTestBase {
    * Tests the generation of all system date tokens.
    */
   function testSystemDateTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Set time to one hour before request.
     $date = REQUEST_TIME - 3600;
diff --git a/core/modules/system/system.api.php b/core/modules/system/system.api.php
index 0dc087d..142a366 100644
--- a/core/modules/system/system.api.php
+++ b/core/modules/system/system.api.php
@@ -1896,7 +1896,7 @@ function hook_custom_theme() {
  */
 function hook_watchdog(array $log_entry) {
   global $base_url;
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $severity_list = array(
     WATCHDOG_EMERGENCY     => t('Emergency'),
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index fe61ad1..804575c 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -2069,7 +2069,7 @@ function system_filetransfer_info() {
 function system_init() {
   global $conf;
 
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
   // For each date type (e.g. long, short), get the localized date format
   // for the user's current language and override the default setting for it
   // in $conf. This should happen on all pages except the date and time formats
diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TokenReplaceTest.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TokenReplaceTest.php
index 6e2594f..4f882ca 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TokenReplaceTest.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Tests/TokenReplaceTest.php
@@ -62,7 +62,7 @@ class TokenReplaceTest extends TaxonomyTestBase {
    * Creates some terms and a node, then tests the tokens generated from them.
    */
   function testTaxonomyTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
     // Create two taxonomy terms.
     $term1 = $this->createTerm($this->vocabulary);
diff --git a/core/modules/taxonomy/taxonomy.module b/core/modules/taxonomy/taxonomy.module
index 66c78e1..9f927a7 100644
--- a/core/modules/taxonomy/taxonomy.module
+++ b/core/modules/taxonomy/taxonomy.module
@@ -586,7 +586,7 @@ function taxonomy_term_delete_multiple(array $tids) {
  */
 function taxonomy_term_view(Term $term, $view_mode = 'full', $langcode = NULL) {
   if (!isset($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+    $langcode = language(LANGUAGE_TYPE_CONTENT)->langcode;
   }
 
   field_attach_prepare_view('taxonomy_term', array($term->tid => $term), $view_mode, $langcode);
diff --git a/core/modules/user/lib/Drupal/user/Tests/UserTokenReplaceTest.php b/core/modules/user/lib/Drupal/user/Tests/UserTokenReplaceTest.php
index f257118..974d92e 100644
--- a/core/modules/user/lib/Drupal/user/Tests/UserTokenReplaceTest.php
+++ b/core/modules/user/lib/Drupal/user/Tests/UserTokenReplaceTest.php
@@ -25,7 +25,7 @@ class UserTokenReplaceTest extends WebTestBase {
    * Creates a user, then tests the tokens generated from it.
    */
   function testUserTokenReplacement() {
-    $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+    $language_interface = language(LANGUAGE_TYPE_INTERFACE);
     $url_options = array(
       'absolute' => TRUE,
       'language' => $language_interface,
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 4e8df24..1f72aa6 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -710,7 +710,7 @@ function user_user_view($account) {
  */
 function user_account_form(&$form, &$form_state) {
   global $user;
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $account = $form['#user'];
   $register = ($form['#user']->uid > 0 ? FALSE : TRUE);
@@ -2374,7 +2374,7 @@ function user_view_page($account) {
  */
 function user_view($account, $view_mode = 'full', $langcode = NULL) {
   if (!isset($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+    $langcode = language(LANGUAGE_TYPE_CONTENT)->langcode;
   }
 
   // Retrieve all profile fields and attach to $account->content.
@@ -2410,7 +2410,7 @@ function user_view($account, $view_mode = 'full', $langcode = NULL) {
  */
 function user_build_content($account, $view_mode = 'full', $langcode = NULL) {
   if (!isset($langcode)) {
-    $langcode = language_manager(LANGUAGE_TYPE_CONTENT)->langcode;
+    $langcode = language(LANGUAGE_TYPE_CONTENT)->langcode;
   }
 
   // Remove previously built content, if exists.
diff --git a/core/modules/user/user.pages.inc b/core/modules/user/user.pages.inc
index 783e3ff..434de72 100644
--- a/core/modules/user/user.pages.inc
+++ b/core/modules/user/user.pages.inc
@@ -77,7 +77,7 @@ function user_pass_validate($form, &$form_state) {
 }
 
 function user_pass_submit($form, &$form_state) {
-  $language_interface = language_manager(LANGUAGE_TYPE_INTERFACE);
+  $language_interface = language(LANGUAGE_TYPE_INTERFACE);
 
   $account = $form_state['values']['account'];
   // Mail one time login URL and instructions using current language.