Festivals have long mixed celebration with a bit of risk, using calendars to...

https://blogfreely.net/teresa-long85/what-does-it-mean-that-the-permission-had-an-end-date

Festivals have long mixed celebration with a bit of risk, using calendars to mark when gambling should stop. Take Saturnalia, where games ended as the holiday closed, or Diwali’s teen patti, played only during the festival