National Foundation Day (Korea)

National Foundation Day or Gaecheonjeol (South Korea)

Public holidays in Honduras

Morazán Day (Honduras)

Mean Girls

Mean Girls Day

German Unity Day

German Unity Day (Germany)

3 October Festival

3 October Festival (Leiden, Netherlands)

October 3 (Eastern Orthodox liturgics)

Christian feast day:
October 3 (Eastern Orthodox liturgics)

Maximian of Bagai

Christian feast day:
Maximian of Bagai

Théodore Guérin

Christian feast day:
Théodore Guérin

Hesychius of Sinai

Christian feast day:
Hesychius of Sinai

Gérard of Brogne

Christian feast day:
Gerard of Brogne

John Mott

Christian feast day:
John Raleigh Mott (Episcopal Church)

Francis Borgia

Christian feast day:
Francis Borgia

Two Hewalds

Christian feast day:
Ewald the Black and Ewald the Fair

Dionysius the Areopagite

Christian feast day:
Dionysius the Areopagite

Beatification

Christian feast day:
Blessed Szilárd Bogdánffy