Story
Paper sumo (kamizumo) is a Japanese table game said to have begun in the Edo period, when sumo became a popular sport: paper wrestlers stand on a box, and the players tap the box to make them push each other. This folded wrestler is a traditional design whose first folder is unknown. The oldest known picture of it is a print said to come from the Meiji era (before 1912), and it appears again in a print in a Japanese book from 1935.
Did you know? Early paper sumo was played by blowing on the wrestlers. Tapping the box is the usual way today.