2018
Later action
Mother Teresa Day (Dita e Nënë Terezës)
Updated the State Ceremonial from the October 19 beatification entry to September 5 Saint Teresa Sanctification Day.
Evergreen date guide
What is celebrated on October 9?
See the observances and verified observance-history milestones attached to October 9. Each observance keeps its own source and date details.
Verified history
Today in history →On this date in observance history
Selected observance milestones connected to this date, based on reviewed sources.
2017
Later action
Independence Day of Turkmenistan
Amended the 1991 Constitutional Law so the recurring Independence Day is September 27 rather than the former October 27 date; official 2018 material identifies that year as the fi…
1997
Later action
Birth anniversary of National Artist Lino Brocka
Declared Lino Brocka a National Artist for 1997 in Film and Broadcast Arts.
1976
First observance
National Chess Day
US Chess’s origins material identifies 9 October 1976 as the National Chess Day associated with the Ford-era acknowledgment.
1969
First observance
World Post Day
UPU states that postal operators have celebrated World Post Day on 9 October since 1969, when the Universal Postal Congress declared the event.
1962
First observance
Independence Day
State House states that the Independence Day anniversary is held annually on October 9 since 1962, supporting 1962 as the first year in the continuing annual sequence.
1935
First observance
Leif Erikson Day
Public Resolution 33 authorized, and Proclamation 2135 designated, October 9, 1935 as a one-time Leif Erikson Day.
1935
Precursor
Leif Erikson Day
Public Resolution 33 authorized a one-time October 9, 1935 designation; the recurring annual federal proclamation authority was enacted separately in 1964.
Curated global anchors
See the collection →Major global guides on October 9
A reviewed starting point drawn from prominent global observances with strong institutional or organizer sources. Each observance keeps its own documented status and scope.
Source-backedFixed AnnualIn-depth guide
World Post Day
UPU/1969/Res.C.11
Reviewed depth
Other in-depth guides on October 9
Source-backedFixed AnnualIn-depth guide
Commemoration of the abolition of slavery — Saint-Barthélemy
French Decree no. 2012-553 added Saint-Barthélemy to the territorial abolition-commemoration schedule with 9 October, and current Labour Code article L3422-2 lists that day as a public holi…
Source-backedFixed AnnualIn-depth guide
Hangul Proclamation Day
Republic of Korea Ministry of Personnel Management; Act on National Holidays
Source-backedFixed AnnualIn-depth guide
Independence Day
Uganda State House, Parliament and current public-holiday law verify annual October 9 recurrence, the 1962 independence anchor and current statutory recognition.
Source-backedFixed AnnualIn-depth guide
Independence of Guayaquil
The Municipality of Guayaquil identifies 9 October 1820 as Guayaquil’s independence and marks 9 October with civic commemoration.
Source-backedFixed AnnualIn-depth guide
International Beer and Pizza Day
The observance’s own site states that International Beer and Pizza Day began in 2016, was founded by Nick Saulino, and is celebrated each year on 9 October.
Source-backedFixed AnnualIn-depth guide
Leif Erikson Day
36 U.S.C. §114 provides that the President may issue each year a proclamation designating October 9 as Leif Erikson Day.
Explore the mix
All topics →Topics represented on October 9
8 observances
All observances on this date
Source-backedFixed AnnualIn-depth guide
Commemoration of the abolition of slavery — Saint-Barthélemy
French Decree no. 2012-553 added Saint-Barthélemy to the territorial abolition-commemoration schedule with 9 October, and current Labour Code article L3422-2 lists that day as a public holi…
Source-backedFixed AnnualIn-depth guide
Hangul Proclamation Day
Republic of Korea Ministry of Personnel Management; Act on National Holidays
Source-backedFixed AnnualIn-depth guide
Independence Day
Uganda State House, Parliament and current public-holiday law verify annual October 9 recurrence, the 1962 independence anchor and current statutory recognition.
Source-backedFixed AnnualIn-depth guide
Independence of Guayaquil
The Municipality of Guayaquil identifies 9 October 1820 as Guayaquil’s independence and marks 9 October with civic commemoration.
Source-backedFixed AnnualIn-depth guide
International Beer and Pizza Day
The observance’s own site states that International Beer and Pizza Day began in 2016, was founded by Nick Saulino, and is celebrated each year on 9 October.
Source-backedFixed AnnualIn-depth guide
Leif Erikson Day
36 U.S.C. §114 provides that the President may issue each year a proclamation designating October 9 as Leif Erikson Day.
Source-backedRule Based AnnualIn-depth guide
World Egg Day
World Egg Organisation (formerly the International Egg Commission) says World Egg Day was established in Vienna in 1996, first celebrated that year and is observed on the second Friday in O…
Source-backedFixed AnnualIn-depth guide
World Post Day
UPU/1969/Res.C.11
How dates are selected
This page combines fixed annual dates, reusable calendar rules and year-specific dates confirmed for 2026. Variable or historical dates are included only when they are clearly supported.
Read the methodology →