A strange little side quest
Put Leftovers next to the history of food history and a few unexpected connections appear. Nancy Johnson patented a hand-cranked ice-cream freezer in 1843 that used an inner churning chamber surrounded by ice. And the history keeps stacking up: Spacewar! appeared on MIT's PDP-1 in 1962 and became one of the earliest influential computer games shared among programmers. That gives Leftovers a little more company than it first appears to have.