Also at the Met's show is Homer's Snap the Whip (1872). It is a small painting (and just one of several of his versions on the same theme):
That picture reminded me of a snap we took of Nathan Hales's Schoolhouse in East Haddam, CT a week ago. Hale taught there for a few months after graduating from Yale. He was bored with living in the sticks, and left to teach in the "city" in New London.