The Balladeer leans back against one of the tall columns, following her gaze. "That's Abraham Lincoln. He was president, a long time back." He assumes it's been a while, anyway, given that the memorial's even here in the first place now. Who knows what year it is?

"There was a civil war at the time, and he kept the country together. Also helped outlaw the practice of slavery." This is, of course, an extremely simplified explanation of that entire chapter of American history, but Greta doesn't want a long lecture. Also, the most relevant part is that - "Booth's side lost, and he got pretty upset about the freedom thing, so he shot him." - John Wilkes Booth is a terrible human being.