International Albinism Awareness Day

International Albinism Awareness Day (international)

Public holidays in Iraq

Suleimaniah City Fallen and Martyrs Day (Iraqi Kurdistan)

Inventors' Day

Inventors' Day (Hungary)

June 13 (Eastern Orthodox liturgics)

Christian feast day:
June 13 (Eastern Orthodox liturgics)

Triphyllius

Christian feast day:
Triphyllius

Thomas Woodhouse

Christian feast day:
Blessed Thomas Woodhouse

Christian feast day: Ragnebert (Rambert)

Christian feast day:
Ragnebert (Rambert)

Psalmodius

Christian feast day:
Psalmodius

Gerard of Clairvaux (died 1138)

Christian feast day:
Gerard of Clairvaux

G. K. Chesterton

Christian feast day:
G. K. Chesterton (Episcopal Church (USA))

Felicula

Christian feast day:
Felicula

Cetteus

Christian feast day:
Cetteus (Peregrinus)

Aquilina

Christian feast day:
Aquilina

Anthony of Padua

Christian feast day:
Anthony of Padua, Doctor of the Church

Twelve-Day War

Israel initiates air strikes against Iran, initiating the Twelve Day War.