html - How to make the points overlap in visjs timeline? - Stack Overflow
vis-timeline examples - CodeSandbox
GitHub - javdome/timeline-arrows: Class to easily draw lines to connect items in the vis Timeline module. See examples here: https://javdome.github.io/timeline-arrows/index.html
Vis Timeline Examples
vis-timeline - npm
Using JavaScript for Making a Goal Timeline With vis.js | BinaryWebPark
Vis Timeline Examples
vis.js - Vis Timeline Nested Group background entire row - Stack Overflow
BUG][Timeline] Vertical scroll bug on groups column and timeline · Issue #422 · visjs/vis-timeline · GitHub