History With Grey

I'm a history nerd and I need something to post when I don't have a work or art, so I figured I'd do something I love: history. I'll basically just say some facts about events in history, and will include a bibliography if you want to learn more.
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Disclaimed: this will contain possibly triggering topics. You can probably deduct what might be in here by both a basic knowledge of history and what's in the title of the chapter. Please be cautious or just don't read if these may trigger you. As always, proceed with caution on the internet.