In ancient Rome, Saturnalia was a festival in honor of the god Saturn, held in December and including feasting, role reversals, and gift-giving.
Saturnalia was a time of fun and celebration, kind of like a big party.
Examples:
During Saturnalia, people gave each other presents.
At Saturnalia, people would eat a lot of food.
Saturnalia was a time for playing games and having fun.
I wish we could have a Saturnalia at school!
During Saturnalia, everyone acted silly and had a great time.
The whole town was happy during Saturnalia.