diff --git a/core/modules/history/history.module b/core/modules/history/history.module
index 38dd8ab..58d442c 100644
--- a/core/modules/history/history.module
+++ b/core/modules/history/history.module
@@ -106,3 +106,25 @@ function history_user_delete($account) {
->condition('uid', $account->id())
->execute();
}
+
+/**
+ * Implements hook_help().
+ */
+function history_help($path, $arg) {
+ switch ($path) {
+ case 'admin/help#history':
+ $output = '' . t('About') . '
';
+ $output .= '' . t('Records which user has read which content. For more information, see the online handbook entry for the History module.', array('@history-module' => 'https://drupal.org/documentation/modules/history')) . '
';
+ $output .= '' . t('User Interface') . '
';
+ $output .= '' . t('No user interface is provided, this module makes its data available through using Views.') . '
';
+ $output .= '' . t('Uses in Views') . '
';
+ $output .= '';
+ $output .= '- ' . t('Node Marks') . '
';
+ $output .= '- ' . t('When using a view to display lists of content, adding history data will mark content as new or updated since the last time the user viewed that content.') . '
';
+ $output .= '- ' . t('You can also add a filter to only show content that is new or updated for a user.') . '
';
+ $output .= '
';
+ $output .= '' . t('Cron') . '
';
+ $output .= '' . t('History records older than 1 month will be removed during cron. This means content older than 1 month will always be considered read.') . '
';
+ return $output;
+ }
+}