2022
Institutional decision
International Day of Plant Health
The UN Digital Library action note records adoption on 29 March 2022.
Evergreen date guide
What is celebrated on March 29?
See the observances and verified observance-history milestones attached to March 29. 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
National Vietnam War Veterans Day
VA described March 29, 2017 as the first official National Vietnam War Veterans Day.
2015
First observance
Piano Day
Frahm’s March 18, 2015 announcement says the first Piano Day would be March 29, 2015.
2007
Later action
Birth Anniversary of President Ramon Magsaysay
Declared 31 August 2007 President Ramon F. Magsaysay Day in Zambales for the centennial birth-anniversary year.
1997
First observance
National Mom and Pop Business Owners Day
A 2010 release quoting Rick Segel says Chase’s Calendar of Events observed the first “National Mom and Pop Business Day” in 1997; March 29 is the recurring date tied to the family…
Reviewed depth
Other in-depth guides on March 29
Source-backedRule Based AnnualIn-depth guide
British Summer Time begins
GOV.UK states the reusable UK rule: clocks go forward one hour at 1am on the last Sunday in March. UK Parliament material documents William Willett’s campaign and the Summer Time Act 1916 h…
Source-backedFixed AnnualIn-depth guide
Commemoration of the liberation struggle of 29 March 1947
Madagascar government ministries marked 29 March 2026 as the 79th anniversary of the 29 March 1947 liberation struggle; an official holiday decree also lists the 29 March commemoration in t…
Source-backedEdition SpecificIn-depth guide
Education and Sharing Day, U.S.A.
Federal law begins the reviewed lineage with Education Day, U.S.A. in 1978, identifies the Lubavitch Movement proposal and ties the inaugural date to Rabbi Menachem Mendel Schneerson’s birt…
Source-backedFixed AnnualIn-depth guide
Knights of Columbus founding anniversary
The Knights of Columbus official history states that the Order assumed corporate status on March 29, 1882, an anniversary the Order recognizes as Founder’s Day. The current charter independ…
Source-backedFixed AnnualIn-depth guide
National Mom and Pop Business Owners Day
A New York State Senate resolution states that Rick and Margie Segel established the observance and that it is celebrated every March 29. A 2010 Ford release quoting Rick Segel ties March 2…
Source-backedFixed AnnualIn-depth guide
National Vietnam War Veterans Day
The U.S. Department of Veterans Affairs identifies March 29 as National Vietnam War Veterans Day and describes the national commemoration of Vietnam veterans and their families.
Explore the mix
All topics →Topics represented on March 29
6 observances
All observances on this date
Source-backedRule Based AnnualIn-depth guide
British Summer Time begins
GOV.UK states the reusable UK rule: clocks go forward one hour at 1am on the last Sunday in March. UK Parliament material documents William Willett’s campaign and the Summer Time Act 1916 h…
Source-backedFixed AnnualIn-depth guide
Commemoration of the liberation struggle of 29 March 1947
Madagascar government ministries marked 29 March 2026 as the 79th anniversary of the 29 March 1947 liberation struggle; an official holiday decree also lists the 29 March commemoration in t…
Source-backedEdition SpecificIn-depth guide
Education and Sharing Day, U.S.A.
Federal law begins the reviewed lineage with Education Day, U.S.A. in 1978, identifies the Lubavitch Movement proposal and ties the inaugural date to Rabbi Menachem Mendel Schneerson’s birt…
Source-backedFixed AnnualIn-depth guide
Knights of Columbus founding anniversary
The Knights of Columbus official history states that the Order assumed corporate status on March 29, 1882, an anniversary the Order recognizes as Founder’s Day. The current charter independ…
Source-backedFixed AnnualIn-depth guide
National Mom and Pop Business Owners Day
A New York State Senate resolution states that Rick and Margie Segel established the observance and that it is celebrated every March 29. A 2010 Ford release quoting Rick Segel ties March 2…
Source-backedFixed AnnualIn-depth guide
National Vietnam War Veterans Day
The U.S. Department of Veterans Affairs identifies March 29 as National Vietnam War Veterans Day and describes the national commemoration of Vietnam veterans and their families.
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 →