Public holidays in Liberia

National Redemption Day (Liberia)

Minor American Revolution holidays

Halifax Day (North Carolina)

Yuri's Night

Commemoration of first human in space by Yuri Gagarin:
Yuri's Night (International observance)

International Day of Human Space Flight

Commemoration of first human in space by Yuri Gagarin:
International Day of Human Space Flight

Cosmonautics Day

Commemoration of first human in space by Yuri Gagarin:
Cosmonautics Day (Russia)

April 12 (Eastern Orthodox liturgics)

Christian feast day:
April 12 (Eastern Orthodox liturgics)

Zeno of Verona

Christian feast day:
Zeno of Verona

Teresa of the Andes

Christian feast day:
Teresa of the Andes

Sabbas the Goth

Christian feast day:
Sabbas the Goth

Pope Julius I

Christian feast day:
Pope Julius I

Erkembode

Christian feast day:
Erkembode

Angelo Carletti di Chivasso

Christian feast day:
Blessed Angelo Carletti di Chivasso

Alferius

Christian feast day:
Alferius

Adoniram Judson

Christian feast day:
Adoniram Judson (Episcopal Church)

Children's Day

Children's Day (Bolivia)