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Evergreen date guide

What is celebrated on May 29?

See the observances and verified observance-history milestones attached to May 29. Each observance keeps its own source and date details.

Verified history

On this date in observance history

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Selected observance milestones connected to this date, based on reviewed sources.

2021
First observance

National Alligator Day

Wild Florida’s history and launch materials identify May 29, 2021 as the inaugural National Alligator Day.

2008
First observance

International Sagarmatha (Mount Everest) Day

Contemporary 2008 material describes the programme as the first International Sagarmatha Day; NTB’s later 12th-in-2019 and 13th-in-2020 numbering independently aligns with a 2008…

2004
First observance

Amateur Radio Military Appreciation Day

QST listed Amateur Radio Military Appreciation Day in Fort Wayne on May 29, 2004, and a February 2005 Defense story calls the May 28, 2005 event the second annual ARMAD.

About this date

What this date contains

5 observances

Each observance is shown once in this view, with its own source and scope details available on the guide page.

0 repeat predictably

0 use a fixed annual date and 0 follow a reusable calendar rule.

0 are edition-specific

These dates are shown only for the year or edition that has been confirmed.

1 have a country-specific scope

Country-specific observances are not presented as worldwide events.

5 have in-depth guides

These pages include reviewed meaning, history, activities, facts and FAQs.

Curated global anchors

Major global guides on May 29

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A reviewed starting point drawn from prominent global observances with strong institutional or organizer sources. Each observance keeps its own documented status and scope.

Reviewed depth

Other in-depth guides on May 29

Source-backedRule Based AnnualIn-depth guide

European Neighbours’ Day

Last Friday of May (29 May in 2026) · Europe / neighbourhood-solidarity initiative originating in Paris in 1999

European institutional and city-project sources describe European Neighbours’ Day as an annual event held on the last Friday of May, originating in Paris in 1999.

Source-backedFixed AnnualIn-depth guide

International Sagarmatha (Mount Everest) Day

29 May annually in Nepal’s official tourism observance · Nepal mountaineering and tourism commemoration of the first confirmed ascent of Everest

Government of Nepal / Nepal Tourism Board evidence supports annual May 29 International Sagarmatha Day, a first 2008 programme and continuing Ministry/NTB/NMA involvement, commemorating Ten…

Source-backedFixed AnnualIn-depth guide

National Alligator Day

29 May · Wild Florida-created wildlife education observance / United States origin

Wild Florida says it decided to create National Alligator Day in February 2021 and launched the observance on May 29, 2021 to encourage appreciation and education about alligators; Florida…

Source-backedRule Based AnnualIn-depth guide

National Heat Awareness Day

Last Friday in May · United States / heat-safety awareness

Consecutive New York legislative resolutions describe National Heat Awareness Day as observed each year on the last Friday in May. NWS and OSHA provide authoritative heat-safety guidance, b…

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Topics represented on May 29

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Community, Causes & Advocacy 1Workplace, Professions & Appreciation 1Civic, Remembrance & History 1Animals, Nature & Environment 1Health, Wellness & Awareness 1
5 observances

All observances on this date

Source-backedRule Based AnnualIn-depth guide

European Neighbours’ Day

Last Friday of May (29 May in 2026) · Europe / neighbourhood-solidarity initiative originating in Paris in 1999

European institutional and city-project sources describe European Neighbours’ Day as an annual event held on the last Friday of May, originating in Paris in 1999.

Source-backedFixed AnnualIn-depth guide

International Sagarmatha (Mount Everest) Day

29 May annually in Nepal’s official tourism observance · Nepal mountaineering and tourism commemoration of the first confirmed ascent of Everest

Government of Nepal / Nepal Tourism Board evidence supports annual May 29 International Sagarmatha Day, a first 2008 programme and continuing Ministry/NTB/NMA involvement, commemorating Ten…

Source-backedFixed AnnualIn-depth guide

National Alligator Day

29 May · Wild Florida-created wildlife education observance / United States origin

Wild Florida says it decided to create National Alligator Day in February 2021 and launched the observance on May 29, 2021 to encourage appreciation and education about alligators; Florida…

Source-backedRule Based AnnualIn-depth guide

National Heat Awareness Day

Last Friday in May · United States / heat-safety awareness

Consecutive New York legislative resolutions describe National Heat Awareness Day as observed each year on the last Friday in May. NWS and OSHA provide authoritative heat-safety guidance, b…

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 →