I'm nice, people are being not so nice, and this is my occasional semi-retirement break (I was checking on my Heaven thread and got distracted by this), so I'll say this:
Timelines are art in their quality. Some are well done paintings, some are good drawings, some are sketches, some are stick figures. This is, no offense, somewhere between the latter two. It does not really take into account so many factors. Butterflies, for example, as there is a WWI which should have been altered by the event happening for the POD. Like a painting, if you want a good timeline, you must go carefully and meticulously with your brush strokes. If you just want a sketch (which the US Election Atlas site TL's are), you can leap frog over things by just post a "Date: Event" format, but you still need to give that sketch shape by doing research and taking butterflies and logistics into account. Otherwise, you have stick figures.