Memorial Day of St. Gregory of Akrita
Celebrated on 18 JanuaryMemorial Day of St.
Gregory of Akrita
Other holidays on 18 January
- Orthodox holidays - Eve of the Epiphany (Epiphany Christmas Eve)
- Holidays of the Slavs - Intra (Patron of Snakes)
- Holidays of Russia - Birthday of children's television in Russia
- Russian Holidays - Day of Breaking the Siege of Leningrad
- Russian Holidays - Day of the Russian Air Force High Command
- Funny holidays - Snowman Day
- Funny Holidays - Day of Holiday Waiting
- According to the folk calendar - Epiphany Eve, Hungry Evening
- Funny holidays - Lighthouse Lighting Day
- Night of Raghaib among Muslims (Laylat al-Raghaib)
- Memorial Day of the Hieromartyr Theopemtos, Bishop of Nicomedia, and the Martyr Theon
- Memorial Day of Venerable Synclitia of Alexandria
- Memorial Day of Venerable Apollinaria