This timeline is more than merely an exercise in alternate history; it is not simply "if x happened, what is y"? No - this timeline, or chronicle if one so chooses, is the exploration of an Earth that is our own, but also not at the same time.
Simply, this timeline is the story of an alternate world, one that expresses how, despite history never repeating, it surely does rhyme.
Link to the Google Doc (It would be preferable for one to access this if they want the full details of the timeline, rather than the plain, AI-generated summaries on here): https://docs.google.com/document/d/1rAvzarkm5SawO1QXNtENFbc5Nv3SHngweboGkJuQBlA/edit?usp=sharing