On May 29, 1453, Constantinople fell. Ottoman invaders under Sultan Mehmed II succeeded against the Byzantine defenders under Emperor Constantine XI Palaiologos after a siege of several weeks. Many intellectuals fled Constantinople at this time, and most ended up (eventually) in Italy. Many historians consider this date to be the official end of the Middle Ages and the beginning of the Renaissance.
Of course, I doubt anyone held an end of the Middle Ages party, but there’s no reason we can’t! There’s plenty of medieval recipes to try, costumes to wear, and movies to watch.
“There is a time for everything,
and a season for every activity under heaven.”