What day did the Romans celebrate Minerva's day?

The Ancient Romans established November 29 as Minerva's Day. But a five-day festival in her honor, Quinquatria, began on March 19, the day we now observe as Minerva's Day. The festival began as a one-day observance, during which no blood-letting was permitted and when women traditionally consulted oracles or diviners. Caesar added four days of gladiator games and other activities that appealed to the public to extend the celebration.