littleden.blog
Evergreen date guide

What is celebrated on May 21?

For 2026, these source-backed observances resolve to Thursday, May 21. Recurring rules can move in another year, so each record keeps its own date logic.

Date authority profile

What this date contains

12 unique authority records

The list is deduplicated at the public entity layer while retaining all research provenance behind each page.

0 stable or rule-calculated

0 fixed annual and 0 reusable rule-based records can be placed without inventing a new date.

0 edition-specific

Edition-specific dates appear only when the requested year matches the verified edition; variable and historical records remain gated.

4 explicit country-scope records

Country scope stays attached to the underlying record instead of being generalized into a worldwide observance.

2 reviewed in-depth guides

These entities add reviewed meaning, history, activities, facts and FAQs without rewriting the authority facts.

Reviewed depth

Other in-depth guides on May 21

Source-backedFixed AnnualIn-depth guide

International Tea Day

21 May · United Nations / FAO international observance

A/RES/74/241

Explore the mix

Topics represented on May 21

All topics →
Workplace, Professions & Appreciation 3Faith, Tradition & Spirituality 2Community, Causes & Advocacy 2Food, Drink & Hospitality 2Celebrations & Social 1Arts, Entertainment & Lifestyle 1Relationships & Family 1
12 date-resolved records

All observances on this date

Source-backedEdition Specific

Erev Shavuot / eve of Shavuot

21 May 2026; Shavuot begins at sunset · Jewish calendar / Diaspora dates in Chabad 2026 calendar

Chabad’s 2026 calendar states that Shavuot begins at sunset on Thursday, 21 May 2026 and ends at nightfall on 23 May outside Israel.

Source-backedFixed AnnualIn-depth guide

International Tea Day

21 May · United Nations / FAO international observance

A/RES/74/241

Source-backedRule Based Annual

National Aperitif Day

Third Thursday in May · United States / informal aperitif observance

National Today and Checkiday independently define National Apéritif Day as the third Thursday in May each year.

Source-backedRule Based Annual

National Notebook Day

Third Thursday in May · United States-origin stationery / notebook appreciation observance

The inaugural 2016 announcement identifies May Designs as the creator; subsequent coverage records the recurring rule as the third Thursday in May.

Source-backedFixed Annual

National Waiters and Waitresses Day

21 May · United States / hospitality-industry appreciation observance

Bar & Restaurant identifies May 21 as National Waiters and Waitresses Day in a dedicated 2014 article and in multiple hospitality promotional calendars.

Source-backedFixed Annual

National Waiters Day

21 May · United Kingdom / hospitality front-of-house recognition campaign

Hospitality-industry coverage identifies National Waiters Day as a May 21 campaign inspired by Fred Sirieix and led by the Springboard Charity.

Source-backedFixed Annual

National Waitstaff Day

21 May · United States / waitstaff appreciation observance

The U.S. Census Bureau has published National Waitstaff Day material for May 21, providing federal institutional recognition of the date.

Source-backedFixed Annual

Sister Maria Hummel Day

21 May · Hummel art/collector community / remembrance of Sister Maria Innocentia (Berta) Hummel

The M.I. Hummel organization records Berta Hummel’s birth on 21 May 1909; an observance reference places Sister Maria Hummel Day on the same 21 May birthday anchor.

Source-backedEdition Specific

The Ascension of Our Lord

21 May 2026 in the Orthodox Church in America calendar · Orthodox Church in America / 2026 liturgical calendar

The Orthodox Church in America’s 2026 calendar identifies 21 May as the Ascension of Our Lord.

How this date is built

This page is assembled from verified fixed dates, reusable recurrence rules, and target-year records whose edition matches 2026. Variable, historical or unresolved records are not silently forced onto this date.

Read the methodology →