2018
Institutional decision
National Fine Art Appreciation Day
RoGallery published the first-annual announcement on October 16, 2018.
Evergreen date guide
What is celebrated on October 16?
See the observances and verified observance-history milestones attached to October 16. 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
First observance
Global Cat Day
Alley Cat Allies described October 16, 2017 as its inaugural Global Cat Day.
2017
Later action
National Feral Cat Day®
Expanded/evolved the campaign into Global Cat Day® as international participation grew; current material still treats National Feral Cat Day® as an action component or critical pa…
2001
First observance
National Feral Cat Day®
Alley Cat Allies says it created the observance in 2001 on its tenth anniversary and established October 16 as the date.
1981
First observance
World Food Day
FAO records that World Food Day was first observed in 1981; the establishing decision fixed the annual observance on 16 October, FAO’s founding anniversary.
Curated global anchors
See the collection →Major global guides on October 16
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 Food Day
A/RES/35/70
Reviewed depth
Other in-depth guides on October 16
Source-backedFixed AnnualIn-depth guide
Global Cat Day
Alley Cat Allies identifies 16 October as Global Cat Day and describes it as its campaign centered on cats and communities.
Source-backedFixed AnnualIn-depth guide
National Boss’s Day
SHRM and Hallmark trace National Boss Day to Patricia Bays Haroski’s 1958 registration with the U.S. Chamber of Commerce; October 16 was selected for her father’s birthday, with later Illin…
Source-backedFixed AnnualIn-depth guide
National Feral Cat Day®
Alley Cat Allies states that it created National Feral Cat Day® in 2001 for October 16. Its primary archives document the 2017 evolution to Global Cat Day® and current material treats Natio…
Source-backedFixed AnnualIn-depth guide
Senate of the Philippines founding anniversary
Senate of the Philippines primary-history and centennial records tie October 16 to the inauguration / first convening of the Philippine Legislature with the Senate on 16 October 1916. The J…
Source-backedFixed AnnualIn-depth guide
World Anaesthesia Day
WFSA identifies World Anaesthesia Day as an annual 16 October observance commemorating the 1846 public ether demonstration and continues to coordinate annual global programming.
Source-backedFixed AnnualIn-depth guide
World Spine Day
World Spine Day campaign / World Federation of Chiropractic network
Explore the mix
All topics →Topics represented on October 16
7 observances
All observances on this date
Source-backedFixed AnnualIn-depth guide
Global Cat Day
Alley Cat Allies identifies 16 October as Global Cat Day and describes it as its campaign centered on cats and communities.
Source-backedFixed AnnualIn-depth guide
National Boss’s Day
SHRM and Hallmark trace National Boss Day to Patricia Bays Haroski’s 1958 registration with the U.S. Chamber of Commerce; October 16 was selected for her father’s birthday, with later Illin…
Source-backedFixed AnnualIn-depth guide
National Feral Cat Day®
Alley Cat Allies states that it created National Feral Cat Day® in 2001 for October 16. Its primary archives document the 2017 evolution to Global Cat Day® and current material treats Natio…
Source-backedFixed AnnualIn-depth guide
Senate of the Philippines founding anniversary
Senate of the Philippines primary-history and centennial records tie October 16 to the inauguration / first convening of the Philippine Legislature with the Senate on 16 October 1916. The J…
Source-backedFixed AnnualIn-depth guide
World Anaesthesia Day
WFSA identifies World Anaesthesia Day as an annual 16 October observance commemorating the 1846 public ether demonstration and continues to coordinate annual global programming.
Source-backedFixed AnnualIn-depth guide
World Food Day
A/RES/35/70
Source-backedFixed AnnualIn-depth guide
World Spine Day
World Spine Day campaign / World Federation of Chiropractic network
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 →