2025
First observance
World Fair Play Day
The United Nations explicitly identifies 19 May 2025 as the inaugural World Fair Play Day under the UN proclamation.
Evergreen date guide
What is celebrated on May 19?
See the observances and verified observance-history milestones attached to May 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.
2020
First observance
National Mechanical Dry Eye Day
Optometric Management’s May 2020 report says the first National Mechanical Dry Eye Day would occur on May 19; a later Optometric Management retrospective also places the first obs…
2016
First observance
National Notebook Day
The May 17, 2016 launch announcement calls May 19, 2016 the inaugural celebration; later UPI coverage corroborates a 2016 start.
2012
First observance
National Hepatitis Testing Day
CDC’s 2012 MMWR describes the first National Hepatitis Testing Day in that year.
2008
Precursor
World Hepatitis Day
The World Hepatitis Alliance-led community observance preceded the 2010 World Health Assembly designation of 28 July and the first official WHO World Hepatitis Day on 28 July 2011.
2006
First observance
International Virtual Assistants Day
A contemporaneous May 2006 announcement explicitly calls May 19, 2006 the inaugural International Virtual Assistants Day.
Reviewed depth
Other in-depth guides on May 19
Source-backedFixed AnnualIn-depth guide
National Asian & Pacific Islander HIV/AIDS Awareness Day
HIV.gov states that National Asian & Pacific Islander HIV/AIDS Awareness Day is observed annually on May 19 and brings attention to HIV in Asian and Pacific Islander communities.
Source-backedFixed AnnualIn-depth guide
National Barber Mental Health Awareness Day
The National Association of Barbers identifies May 19 as Barber Mental Health Awareness Day and publishes industry-focused mental-health awareness guidance for the date.
Source-backedFixed AnnualIn-depth guide
National Hepatitis Testing Day
CDC records that the 2011 HHS viral hepatitis action plan established May 19 as National Hepatitis Testing Day and that the first observance occurred in 2012; current CDC material continues…
Source-backedFixed AnnualIn-depth guide
National Mechanical Dry Eye Day
Contemporaneous May 2020 optometry coverage reports that Bio-Tissue announced the first National Mechanical Dry Eye Day for May 19 and annual recurrence; later Bio-Tissue-sourced campaign a…
Source-backedRule Based AnnualIn-depth guide
National Stop Nausea Day
Reliefband Technologies states that it created National Stop Nausea Day and that it is celebrated on the third Tuesday in May each year.
Source-backedFixed AnnualIn-depth guide
World Fair Play Day
A/RES/78/310
Explore the mix
All topics →Topics represented on May 19
7 observances
All observances on this date
Source-backedFixed AnnualIn-depth guide
National Asian & Pacific Islander HIV/AIDS Awareness Day
HIV.gov states that National Asian & Pacific Islander HIV/AIDS Awareness Day is observed annually on May 19 and brings attention to HIV in Asian and Pacific Islander communities.
Source-backedFixed AnnualIn-depth guide
National Barber Mental Health Awareness Day
The National Association of Barbers identifies May 19 as Barber Mental Health Awareness Day and publishes industry-focused mental-health awareness guidance for the date.
Source-backedFixed AnnualIn-depth guide
National Hepatitis Testing Day
CDC records that the 2011 HHS viral hepatitis action plan established May 19 as National Hepatitis Testing Day and that the first observance occurred in 2012; current CDC material continues…
Source-backedFixed AnnualIn-depth guide
National Mechanical Dry Eye Day
Contemporaneous May 2020 optometry coverage reports that Bio-Tissue announced the first National Mechanical Dry Eye Day for May 19 and annual recurrence; later Bio-Tissue-sourced campaign a…
Source-backedRule Based AnnualIn-depth guide
National Stop Nausea Day
Reliefband Technologies states that it created National Stop Nausea Day and that it is celebrated on the third Tuesday in May each year.
Source-backedFixed AnnualIn-depth guide
World Fair Play Day
A/RES/78/310
Source-backedFixed AnnualIn-depth guide
World IBD Day
The official World IBD Day campaign states that the observance was created in 2010 during Digestive Disease Week, takes place each May 19, and is coordinated by IFCCA with patient organizat…
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 →