Early photograph of a New York and Harlem Railroad horsecar. New York & Harlem transfer tokens from the American Numismatic Society. I’m not sure how many of you frequent twitter, but I think it seems to be a running joke that every day there is some sort of “national holiday” that is trending. I’m not exactly sure how things like “National Fried Chicken Day” (July 6th) or “Walk on Stilts Day” (July 27) get declared, but people on twitter totally love this crap. Manhattan, not wanting to miss out on the action of remarkably stupid “holidays,” even declared a “Justin...