Editing October 3 (section)

==Holidays and observances==
* Christian [[Calendar of saints|feast day]]:
** [[Abd-al-Masih (martyr)|Abd-al-Masih]]
** [[Adalgott]]
** [[Beatification|Blessed]] [[Szilárd Bogdánffy]]
** [[Dionysius the Areopagite]]
** [[Two Ewalds|Ewald the Black and Ewald the Fair]]
** [[Francis Borgia, 4th Duke of Gandía|Francis Borgia]] 
** [[John Raleigh Mott]] ([[Calendar of saints (Episcopal Church)|Episcopal Church]])
** [[Gerard of Brogne]]
** [[Hesychius of Sinai]]
** [[Théodore Guérin]]
** [[Maximian of Bagai]]
** [[October 3 (Eastern Orthodox liturgics)]]
* [[3 October Festival]] (Leiden, [[Netherlands]])
* [[German Unity Day]] ([[Germany]])
* [[Mean Girls#Cultural impact|''Mean Girls'' Day]]
* [[Morazán Day]] ([[Honduras]])
* [[National Day (Iraq)|National Day]], celebrates the independence of [[Iraq]] from the [[United Kingdom]] in 1932.
* [[Gaecheonjeol|National Foundation Day]] or ''Gaecheonjeol'' ([[South Korea]])