“History is a drop in humanity’s bucket of time. The period we usually call “history” takes up the last five thousand years. By its start—the start of writing and civilization—many people had already been living in farming societies for six thousand years. And before that we’d been hunter-gatherers for two hundred thousand years. When history began, we already had a long history. — William Gallo, The Historical Factoids Pocket Guide (Chicago, 2009), 5.”