Baha'i Holidays - First day of the Ridwan festival
Celebrated on 21 AprilBaha'i Holidays - First day of the Ridwan festival
Other holidays on 21 April
- Russian Holidays - Local Government Day
- Russian holidays - Day of the Chief Accountant (Chief Accountant)
- International Gingerbread Day
- Science Day in the USSR
- UN Holidays - World Creativity and Innovation Day
- Holidays of Kazakhstan - Day of the State Security Service of the Republic of Kazakhstan
- Fun Holidays - World Curlew Day
- Russian Holidays - Day of the Creation of the Far East Naval Forces
- Brazil Holidays - Tiradentes Day
- According to the folk calendar - Rodion Icebreaker
- Mahavir Jayanti in India
- Annual London Marathon (Virgin London Marathon)
- Memorial Day of the Holy Apostle Hermas of Dalmatia from the age of 70
- Memorial Day of St. Rodion
- Feast of the Spanish Icon of the Mother of God “Virgin on the Throne”
- Feast of the Icon of the Mother of God “St. George”