diff --git a/static/js/timelines.js b/static/js/timelines.js
index 587f020a74ad20971327b835f55f1fa29e13c289..7f67fa4561f26d901a873adfa9e4f7d6fdebb100 100644
--- a/static/js/timelines.js
+++ b/static/js/timelines.js
@@ -32,6 +32,11 @@ let kingsHandler = {
   copyListReigns: Object(),
   items: new vis.DataSet(),
   groups: new vis.DataSet(),
+  options: new vis.DataSet(),
+  // options: {
+  //   min: "1460-01-01",
+  //   max: "1530-01-01",
+  // },
   titlesGroup: [
     "Roi de France",
     "Roi des Francs"