diff --git a/wp-content/themes/twentythirteen/footer.php b/wp-content/themes/twentythirteen/footer.php
index 204086767b..99b6bbb26c 100644
--- a/wp-content/themes/twentythirteen/footer.php
+++ b/wp-content/themes/twentythirteen/footer.php
@@ -13,7 +13,7 @@
 
 		</div><!-- #main -->
 		<footer id="colophon" class="site-footer" role="contentinfo">
-			<?php get_sidebar( 'footer' ); ?>
+			<?php get_sidebar( 'main' ); ?>
 
 			<div class="site-info">
 				<?php do_action( 'twentythirteen_credits' ); ?>
diff --git a/wp-content/themes/twentythirteen/functions.php b/wp-content/themes/twentythirteen/functions.php
index a34121a2e1..7a3cd118c5 100644
--- a/wp-content/themes/twentythirteen/functions.php
+++ b/wp-content/themes/twentythirteen/functions.php
@@ -169,7 +169,7 @@ function twentythirteen_scripts_styles() {
 		wp_enqueue_script( 'comment-reply' );
 
 	// Adds Masonry to handle vertical alignment of footer widgets.
-	if ( is_active_sidebar( 'sidebar-2' ) )
+	if ( is_active_sidebar( 'sidebar-1' ) )
 		wp_enqueue_script( 'jquery-masonry' );
 
 	// Loads JavaScript file with functionality specific to Twenty Thirteen.
@@ -225,9 +225,9 @@ add_filter( 'wp_title', 'twentythirteen_wp_title', 10, 2 );
  */
 function twentythirteen_widgets_init() {
 	register_sidebar( array(
-		'name'          => __( 'Sidebar', 'twentythirteen' ),
+		'name'          => __( 'Main Widget Area', 'twentythirteen' ),
 		'id'            => 'sidebar-1',
-		'description'   => __( 'Appears on posts and pages', 'twentythirteen' ),
+		'description'   => __( 'Appears in the footer section of the site', 'twentythirteen' ),
 		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
 		'after_widget'  => '</aside>',
 		'before_title'  => '<h3 class="widget-title">',
@@ -235,9 +235,9 @@ function twentythirteen_widgets_init() {
 	) );
 
 	register_sidebar( array(
-		'name'          => __( 'Footer Widget Area', 'twentythirteen' ),
+		'name'          => __( 'Secondary Widget Area', 'twentythirteen' ),
 		'id'            => 'sidebar-2',
-		'description'   => __( 'Appears in the footer section of the site', 'twentythirteen' ),
+		'description'   => __( 'Appears on posts and pages in the sidebar.', 'twentythirteen' ),
 		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
 		'after_widget'  => '</aside>',
 		'before_title'  => '<h3 class="widget-title">',
@@ -505,7 +505,7 @@ function twentythirteen_body_class( $classes ) {
 	if ( ! is_multi_author() )
 		$classes[] = 'single-author';
 
-	if ( is_active_sidebar( 'sidebar-1' ) && ! is_attachment() && ! is_404() )
+	if ( is_active_sidebar( 'sidebar-2' ) && ! is_attachment() && ! is_404() )
 		$classes[] = 'sidebar';
 
 	return $classes;
diff --git a/wp-content/themes/twentythirteen/js/functions.js b/wp-content/themes/twentythirteen/js/functions.js
index 45b81b80bb..04c8010614 100644
--- a/wp-content/themes/twentythirteen/js/functions.js
+++ b/wp-content/themes/twentythirteen/js/functions.js
@@ -92,7 +92,7 @@
 	if ( $.isFunction( $.fn.masonry ) ) {
 		var columnWidth = $( 'body' ).is( '.sidebar' ) ? 228 : 245;
 
-		$( '#tertiary .widget-area' ).masonry( {
+		$( '#secondary .widget-area' ).masonry( {
 			itemSelector: '.widget',
 			columnWidth:  columnWidth,
 			gutterWidth:  20
diff --git a/wp-content/themes/twentythirteen/sidebar-footer.php b/wp-content/themes/twentythirteen/sidebar-main.php
similarity index 59%
rename from wp-content/themes/twentythirteen/sidebar-footer.php
rename to wp-content/themes/twentythirteen/sidebar-main.php
index 2a6aec6d5d..5706e14ca8 100644
--- a/wp-content/themes/twentythirteen/sidebar-footer.php
+++ b/wp-content/themes/twentythirteen/sidebar-main.php
@@ -9,10 +9,10 @@
  * @since Twenty Thirteen 1.0
  */
 
-if ( is_active_sidebar( 'sidebar-2' ) ) : ?>
-	<div id="tertiary" class="sidebar-container" role="complementary">
+if ( is_active_sidebar( 'sidebar-1' ) ) : ?>
+	<div id="secondary" class="sidebar-container" role="complementary">
 		<div class="widget-area">
-			<?php dynamic_sidebar( 'sidebar-2' ); ?>
+			<?php dynamic_sidebar( 'sidebar-1' ); ?>
 		</div>
-	</div><!-- #tertiary -->
+	</div><!-- #secondary -->
 <?php endif; ?>
\ No newline at end of file
diff --git a/wp-content/themes/twentythirteen/sidebar.php b/wp-content/themes/twentythirteen/sidebar.php
index 10cf568487..1cff1d2566 100644
--- a/wp-content/themes/twentythirteen/sidebar.php
+++ b/wp-content/themes/twentythirteen/sidebar.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * The sidebar containing the main widget area.
+ * The sidebar containing the secondary widget area, displays on posts and pages.
  *
  * If no active widgets in this sidebar, it will be hidden completely.
  *
@@ -9,12 +9,12 @@
  * @since Twenty Thirteen 1.0
  */
 
-if ( is_active_sidebar( 'sidebar-1' ) ) : ?>
-	<div id="secondary" class="sidebar-container" role="complementary">
+if ( is_active_sidebar( 'sidebar-2' ) ) : ?>
+	<div id="tertiary" class="sidebar-container" role="complementary">
 		<div class="sidebar-inner">
 			<div class="widget-area">
-				<?php dynamic_sidebar( 'sidebar-1' ); ?>
+				<?php dynamic_sidebar( 'sidebar-2' ); ?>
 			</div>
 		</div>
-	</div><!-- #secondary -->
+	</div><!-- #tertiary -->
 <?php endif; ?>
\ No newline at end of file