diff --git a/wp-admin/includes/plugin.php b/wp-admin/includes/plugin.php
index 36645f96c5..018ef57ec1 100644
--- a/wp-admin/includes/plugin.php
+++ b/wp-admin/includes/plugin.php
@@ -540,7 +540,26 @@ function activate_plugin( $plugin, $redirect = '', $network_wide = false, $silen
 		include_once(WP_PLUGIN_DIR . '/' . $plugin);
 
 		if ( ! $silent ) {
+			/**
+			 * Fires before a plugin is activated in activate_plugin() when the $silent parameter is false
+			 * 
+			 * @since 3.0.2
+			 *
+			 * @param string $plugin     Basename of the plugin path from {@see activate_plugin()}
+			 * @param bool $network_wide Argument from {@see activate_plugin()}
+			 */
 			do_action( 'activate_plugin', $plugin, $network_wide );
+
+			/**
+			 * Fires before a plugin is activated in activate_plugin() when the $silent parameter is false
+			 * 
+			 * The action concatenates the 'activate_' prefix with the $plugin value passed to
+			 * activate_plugin() to create a dynamically named action.
+			 * 
+			 * @since 3.0.2
+			 *
+			 * @param bool $network_wide Argument from {@see activate_plugin()}
+			 */
 			do_action( 'activate_' . $plugin, $network_wide );
 		}
 
@@ -554,6 +573,14 @@ function activate_plugin( $plugin, $redirect = '', $network_wide = false, $silen
 		}
 
 		if ( ! $silent ) {
+			/**
+			 * Fires after a plugin has been activated in activate_plugin() when the $silent parameter is false
+			 * 
+			 * @since 3.0.2
+			 *
+			 * @param string $plugin     Basename of the plugin path from {@see activate_plugin()}
+			 * @param bool $network_wide Argument from {@see activate_plugin()}
+			 */
 			do_action( 'activated_plugin', $plugin, $network_wide );
 		}
 
@@ -594,6 +621,16 @@ function deactivate_plugins( $plugins, $silent = false, $network_wide = null ) {
 		$network_deactivating = false !== $network_wide && is_plugin_active_for_network( $plugin );
 
 		if ( ! $silent )
+			/**
+			 * Fires for each plugin being deactivated in deactivate_plugins(), before deactivation
+			 * and when the $silent parameter is false.
+			 * 
+			 * @since 3.3.2
+			 *
+			 * @param string $plugin     Basename of the plugin path from {@see activate_plugin()}
+			 * @param bool $network_deactivating True if $network_wide passed in {@see deactivate_plugin()} 
+			 * is true and the plugin is active for the network.
+			 */
 			do_action( 'deactivate_plugin', $plugin, $network_deactivating );
 
 		if ( false !== $network_wide ) {
@@ -614,7 +651,30 @@ function deactivate_plugins( $plugins, $silent = false, $network_wide = null ) {
 		}
 
 		if ( ! $silent ) {
+			/**
+			 * Fires for each plugin being deactivated in deactivate_plugins(), after deactivation
+			 * and when the $silent parameter is false.
+			 * 
+			 * The action concatenates the 'deactivate_' prefix with the plugin's basename
+			 * to create a dynamically named action.
+			 * 
+			 * @since 3.3.2
+			 *
+			 * @param bool $network_deactivating True if $network_wide passed in {@see deactivate_plugin()} 
+			 * is true and the plugin is active for the network.
+			 */
 			do_action( 'deactivate_' . $plugin, $network_deactivating );
+
+			/**
+			 * Fires for each plugin being deactivated in deactivate_plugins(), after deactivation
+			 * and when the $silent parameter is false.
+			 * 
+			 * @since 3.3.2
+			 *
+			 * @param string $plugin             Basename of the plugin path from {@see activate_plugin()}
+			 * @param bool $network_deactivating True if $network_wide passed in {@see deactivate_plugin()} 
+			 * is true and the plugin is active for the network.
+			 */
 			do_action( 'deactivated_plugin', $plugin, $network_deactivating );
 		}
 	}
@@ -865,6 +925,15 @@ function uninstall_plugin($plugin) {
 		include WP_PLUGIN_DIR . '/' . $file;
 
 		add_action( 'uninstall_' . $file, $callable );
+
+		/**
+		 * Fires in uninstall_plugin() once the plugin has been uninstalled.
+		 * 
+		 * The action concatenates the 'uninstall_' prefix with the basename of the
+		 * plugin passed to {@see uninstall_plugin()} to create a dynamically named action.
+		 *
+		 * @since 2.6.1
+		 */
 		do_action( 'uninstall_' . $file );
 	}
 }