Festivals have long mixed celebration with a bit of gambling, from Saturnalia's...

https://casinocrowd.com/is-japans-year-end-draw-similar-to-the-spanish-christmas-lottery/

Festivals have long mixed celebration with a bit of gambling, from Saturnalia's dice games to Diwali’s teen patti and Lunar New Year mahjong. These traditions often relied on calendars to mark when the fun—and the risk—should end