The whole timeline is open source and available on Github. If you want to change something about the website itself, this is the file you need to make changes in. If you want to add, adapt or remove data from the timeline, you'll find all of that in this JSON file. If you want to run a version of the Lightning Timeline locally on your computer, please check out these instructions.
... but not necessarily merged. The aim is not to overload the timeline with data, but to keep it a nice overview over the most important things. Less is more!
Since I am not a native speaker of the English language, I'd be particularly happy for some people more skilled than me to reformulate my bad language so English natives won't get any headache while clicking through the timeline ;-)
<script> (function(){ // change page title document.title = 'Lightning Network Timeline'; })(); </script>