2026
Later action
Health Care Assistant Day
The reviewed 2025 index and the current 2026 index do not list Health Care Assistant Day, so a current/future proclamation is not assumed.
Evergreen date guide
What is celebrated on September 19?
See the observances and verified observance-history milestones attached to September 19. 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.
2019
First observance
National Pawpaw Day
Kentucky State University calls the September 19, 2019 Third Thursday Thing celebration the inaugural National Pawpaw Day celebration.
2015
First observance
Usher Syndrome Awareness Day
The Coalition’s November 2015 newsletter describes September 19, 2015 as the first global awareness day.
2008
First observance
National Respect Day
Contemporaneous September 2008 reporting explicitly called Friday, September 19 the first annual national RESPECT Day.
1995
First observance
International Talk Like a Pirate Day
The founders say they created the day in 1995, chose September 19 and celebrated it among themselves and friends before the 2002 publicity breakthrough.
Reviewed depth
Other in-depth guides on September 19
Source-backedFixed AnnualIn-depth guide
Aortic Dissection Awareness Day
The Aortic Dissection Charitable Trust states that Aortic Dissection Awareness Day occurs every September 19 and identifies Timo Söderlund as the founder of the awareness-day initiative.
Source-backedFixed AnnualIn-depth guide
Día de las Glorias del Ejército
Chilean Army; legal-holiday tradition traced to a 1915 decree
Source-backedRule Based AnnualIn-depth guide
International Coastal Cleanup®
Ocean Conservancy states that the International Coastal Cleanup is held annually on the third Saturday of September, with many cleanups also occurring throughout the month.
Source-backedRule Based AnnualIn-depth guide
International Red Panda Day
Red Panda Network first-party material states that it launched International Red Panda Day in 2010 and that the observance takes place every year on the third Saturday of September. Current…
Source-backedFixed AnnualIn-depth guide
International Talk Like a Pirate Day
TIME documents International Talk Like a Pirate Day as an annual 19 September observance created by John Baur and Mark Summers in 1995.
Source-backedRule Based AnnualIn-depth guide
National Cartonnage Day
National Day Archives records Colorway Arts as the creator and states the observance occurs on the third Saturday of September; Colorway Arts documents the original September 18, 2021 event.
Explore the mix
All topics →Topics represented on September 19
12 observances
All observances on this date
Source-backedFixed AnnualIn-depth guide
Aortic Dissection Awareness Day
The Aortic Dissection Charitable Trust states that Aortic Dissection Awareness Day occurs every September 19 and identifies Timo Söderlund as the founder of the awareness-day initiative.
Source-backedFixed AnnualIn-depth guide
Día de las Glorias del Ejército
Chilean Army; legal-holiday tradition traced to a 1915 decree
Source-backedRule Based AnnualIn-depth guide
International Coastal Cleanup®
Ocean Conservancy states that the International Coastal Cleanup is held annually on the third Saturday of September, with many cleanups also occurring throughout the month.
Source-backedRule Based AnnualIn-depth guide
International Red Panda Day
Red Panda Network first-party material states that it launched International Red Panda Day in 2010 and that the observance takes place every year on the third Saturday of September. Current…
Source-backedFixed AnnualIn-depth guide
International Talk Like a Pirate Day
TIME documents International Talk Like a Pirate Day as an annual 19 September observance created by John Baur and Mark Summers in 1995.
Source-backedRule Based AnnualIn-depth guide
National Cartonnage Day
National Day Archives records Colorway Arts as the creator and states the observance occurs on the third Saturday of September; Colorway Arts documents the original September 18, 2021 event.
Source-backedFixed AnnualIn-depth guide
National Cat DNA Day
National Day Archives records September 19 and identifies Basepaws as the 2020 founder; Basepaws continues to reference National Cat DNA Day in its own materials.
Source-backedRule Based AnnualIn-depth guide
National CleanUp Day
The official National CleanUp Day organization states that the observance takes place every year on the third Saturday in September.
Source-backedRule Based AnnualIn-depth guide
National Dance Day
American Dance Movement states that National Dance Day was established in 2010 and, since 2019, takes place annually on the third Saturday in September.
Source-backedRule Based AnnualIn-depth guide
National Multivitamin Day
GNC launched the first National Multivitamin Day in 2024 and states that the observance is held on the third Saturday of September; current 2026 calendar treatment resolves that rule to Sep…
Source-backedRule Based AnnualIn-depth guide
Puppy Mill Awareness Day
Last Chance for Animals states that it and other animal activists started Puppy Mill Awareness Day in Lancaster, Pennsylvania in 2004 and that it takes place annually on the third Saturday…
Source-backedRule Based AnnualIn-depth guide
Usher Syndrome Awareness Day
The Usher Syndrome Coalition states that it declared the third Saturday in September Global Usher Syndrome Awareness Day in 2015. Coalition material records September 19, 2015 as the first…
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 →