diff --git a/HISTORY.md b/HISTORY.md
index 32d3472b..d83e25e8 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -17,6 +17,7 @@ http://visjs.org
 
 ### Timeline
 
+- Fixed #1521: Prevent items from staying stuck to the left side of the viewport.
 - Fixed #1592: Emit a "changed" event after each redraw.
 
 ### Graph2d
diff --git a/lib/timeline/Timeline.js b/lib/timeline/Timeline.js
index a31fe51b..3c919d2e 100644
--- a/lib/timeline/Timeline.js
+++ b/lib/timeline/Timeline.js
@@ -405,6 +405,7 @@ Timeline.prototype.getItemRange = function () {
     // calculate the date of the left side and right side of the items given
     util.forEach(this.itemSet.items, function (item) {
       item.show();
+      item.repositionX();
 
       var start = getStart(item);
       var end = getEnd(item);