2019
Later action
Children of Fallen Patriots Day
Proclaimed May 13, 2019 as Children of Fallen Patriots Day in Michigan.
Evergreen date guide
What is celebrated on May 13?
See the observances and verified observance-history milestones attached to May 13. 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.
1997
Later action
World Tuberculosis Day
Requested the WHO Director-General to coordinate World Tuberculosis Day on 24 March each year, formalizing WHO’s coordinating role after WHO had already given full support from 19…
Reviewed depth
Other in-depth guides on May 13
Source-backedFixed AnnualIn-depth guide
Children of Fallen Patriots Day
Michigan's governor proclaimed May 13, 2019 as Children of Fallen Patriots Day, and current state/local government calendars continue to recognize May 13.
Source-backedFixed AnnualIn-depth guide
IEEE Global Engineering Day
Multiple IEEE first-party channels document May 13 as IEEE Global Engineering Day and show active IEEE organizational/community use. The recurring date and current IEEE identity are support…
Source-backedRule Based AnnualIn-depth guide
National Receptionists Day
New York Senate Resolution J5006 describes National Receptionists Day as the second Wednesday in May and records its 1991 creation by the Director of the National Receptionists Association.
Source-backedRule Based AnnualIn-depth guide
National Third Shift Workers Day
UFCW national and local materials identify National Third Shift Workers Day on the second Wednesday in May and document union observance activity by at least 2017.
Source-backedRule Based AnnualIn-depth guide
Root Canal Appreciation Day
Contemporaneous March 2005 launch material identifies Madison dentist Dr. Chris Kammer as creator, designates May 11, 2005 as the first National Root Canal Appreciation Day, and states that…
Source-backedFixed AnnualIn-depth guide
Top Gun Day
The dedicated Top Gun Day site explicitly identifies May 13 as Top Gun Day and maintains future-year countdown information for the date.
Explore the mix
All topics →Topics represented on May 13
6 observances
All observances on this date
Source-backedFixed AnnualIn-depth guide
Children of Fallen Patriots Day
Michigan's governor proclaimed May 13, 2019 as Children of Fallen Patriots Day, and current state/local government calendars continue to recognize May 13.
Source-backedFixed AnnualIn-depth guide
IEEE Global Engineering Day
Multiple IEEE first-party channels document May 13 as IEEE Global Engineering Day and show active IEEE organizational/community use. The recurring date and current IEEE identity are support…
Source-backedRule Based AnnualIn-depth guide
National Receptionists Day
New York Senate Resolution J5006 describes National Receptionists Day as the second Wednesday in May and records its 1991 creation by the Director of the National Receptionists Association.
Source-backedRule Based AnnualIn-depth guide
National Third Shift Workers Day
UFCW national and local materials identify National Third Shift Workers Day on the second Wednesday in May and document union observance activity by at least 2017.
Source-backedRule Based AnnualIn-depth guide
Root Canal Appreciation Day
Contemporaneous March 2005 launch material identifies Madison dentist Dr. Chris Kammer as creator, designates May 11, 2005 as the first National Root Canal Appreciation Day, and states that…
Source-backedFixed AnnualIn-depth guide
Top Gun Day
The dedicated Top Gun Day site explicitly identifies May 13 as Top Gun Day and maintains future-year countdown information for the date.
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 →