October 21st (1666) was a Thursday. It's the 294th day of the year (295th in leap years) in the Gregorian calendar. There are 71 days left to the end of the year.
October 21st Holidays in History
» Apple Day (United Kingdom)
» Christian Feast Day:
» Hilarion
» John of Bridlington
» Saint Leticia e.g Leticia
» Tuda of Lindisfarne e.g Tuda
» Saint Ursula known as Ursula
» Nachos International Day of the Nacho known as International Day of the Nacho (Mexico and USA)
» Holidays in Taiwan named Overseas Chinese Day (Republic of China)