Memorial Day of St. Ambrose of Optina
Celebrated on 23 OctoberMemorial Day of St.
Ambrose of Optina
Other holidays on 23 October
- Advertising Workers Day in Russia (Advertising Day)
- International Snow Leopard Day
- International School Library Day
- Garage Driver's Day
- Event Organizers Day
- Mole Day
- Tail Drop Day
- According to the folk calendar - Evlampius Winter-Indicator
- Jewelry and Diamond Cutting Industry Worker's Day in Yakutia
- Remembrance Day of the Hungarian Uprising of 1956
- Kabuki Syndrome Awareness Day
- iPod Birthday (iPod Day)
- King Rama V Memorial Day in Thailand
- Pilot's Day in Brazil (Dia do Aviador)
- Labor Day in New Zealand
- Double Nine Festival "Chongyang" in China (Chung Yeung Festival)
- Memorial Day of the Holy Martyrs Evlampios and Eulampia
- Cathedral of Volyn Saints
- Feast of the Icon of the Mother of God Akathist Zografskaya (Forerunner)
- Memorial Day of St. Innocent of Penza