San Jacinto Day

San Jacinto Day (Texas)

Arbor Day

National Tree Planting Day (Kenya)

National Tea Day

National Tea Day (United Kingdom)

Grounation Day

Grounation Day (Rastafari)

Civil Services of India

Civil Service Day (India)

Parilia

Parilia (ancient Rome)

Natale di Roma

Natale di Roma (Rome)

April 21 (Eastern Orthodox liturgics)

Christian feast day:
April 21 (Eastern Orthodox liturgics)

Wolbodo

Christian feast day:
Wolbodo

Shemon bar Sabbae

Christian feast day:
Shemon Bar Sabbae

Máel Ruba

Christian feast day:
Máel Ruba

Holy Infant of Good Health

Christian feast day:
Holy Infant of Good Health

Conrad of Parzham

Christian feast day:
Conrad of Parzham

Anselm of Canterbury

Christian feast day:
Anselm of Canterbury

Anastasius Sinaita

Christian feast day:
Anastasius Sinaita