diff --git a/src/Event/ReplicationEvent.php b/src/Event/ReplicationEvent.php
new file mode 100644
index 0000000..77f5b15
--- /dev/null
+++ b/src/Event/ReplicationEvent.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Drupal\replication\Event;
+
+use Drupal\multiversion\Entity\WorkspaceInterface;
+use Symfony\Component\EventDispatcher\Event;
+
+class ReplicationEvent extends Event {
+
+  /**
+   * The source workspace.
+   *
+   * @var \Drupal\multiversion\Entity\WorkspaceInterface
+   */
+  protected $sourceWorkspace;
+
+  /**
+   * The target workspace.
+   *
+   * @var \Drupal\multiversion\Entity\WorkspaceInterface
+   */
+  protected $targetWorkspace;
+
+  /**
+   * The replication status.
+   *
+   * @var bool
+   */
+  protected $status;
+
+  /**
+   * ReplicationEvent constructor.
+   *
+   * @param \Drupal\multiversion\Entity\WorkspaceInterface $source
+   *   The source workspace.
+   * @param \Drupal\multiversion\Entity\WorkspaceInterface $target
+   *   The target workspace.
+   */
+  public function __construct(WorkspaceInterface $source, WorkspaceInterface $target) {
+    $this->sourceWorkspace = $source;
+    $this->targetWorkspace = $target;
+  }
+
+  /**
+   * Returns the source workspace.
+   *
+   * @return \Drupal\multiversion\Entity\WorkspaceInterface
+   */
+  public function getSourceWorkspace() {
+    return $this->sourceWorkspace;
+  }
+
+  /**
+   * Returns the target workspace.
+   *
+   * @return \Drupal\multiversion\Entity\WorkspaceInterface
+   */
+  public function getTargetWorkspace() {
+    return $this->targetWorkspace;
+  }
+
+  /**
+   * Indicates whether the replication succeeded.
+   *
+   * @return bool
+   */
+  public function succeeded() {
+    return $this->getStatus() === TRUE;
+  }
+
+  /**
+   * Whether the replication failed.
+   *
+   * @return bool
+   */
+  public function failed() {
+    return $this->getStatus() === FALSE;
+  }
+
+  /**
+   * Returns the replication status.
+   *
+   * This will be TRUE on success, FALSE on failure, or NULL if the status is
+   * indeterminate (i.e., the replication is in progress).
+   *
+   * @return bool|null
+   */
+  public function getStatus() {
+    return $this->status;
+  }
+
+  /**
+   * Sets the replication status.
+   *
+   * @param bool $status
+   *   The replication status. TRUE for success, FALSE for failure.
+   */
+  public function setStatus($status) {
+    $this->status = (bool) $status;
+  }
+
+}
diff --git a/src/Event/ReplicationEvents.php b/src/Event/ReplicationEvents.php
new file mode 100644
index 0000000..8a5d9a9
--- /dev/null
+++ b/src/Event/ReplicationEvents.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Drupal\replication\Event;
+
+final class ReplicationEvents {
+
+  /**
+   * Event fired before a replication begins.
+   *
+   * @var string
+   */
+  const PRE_REPLICATION = 'replication.pre_replication';
+
+  /**
+   * Event fired after a replication is completed.
+   *
+   * This event is fired regardless of whether the replication succeeded or
+   * failed.
+   *
+   * @var string
+   */
+  const POST_REPLICATION = 'replication.post_replication';
+
+}