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Evergreen date guide

What is celebrated on November 18?

For 2026, these source-backed observances resolve to Wednesday, November 18. Recurring rules can move in another year, so each record keeps its own date logic.

Date authority profile

What this date contains

11 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 November 18

Source-backedFixed AnnualIn-depth guide

International Day of Islamic Art

18 November · UNESCO international day

Proclaimed at UNESCO’s 40th General Conference (2019)

Explore the mix

Topics represented on November 18

All topics →
Arts, Entertainment & Lifestyle 4Civic, Remembrance & History 3Workplace, Professions & Appreciation 2Health, Wellness & Awareness 2
11 date-resolved records

All observances on this date

Source-backedRule Based Annual

BOTOX® Cosmetic (onabotulinumtoxinA) Day

Third Wednesday of November · United States / Allergan Aesthetics brand observance

AbbVie states that BOTOX® Cosmetic Day is held annually on the third Wednesday of November and identifies it as an Allergan Aesthetics/AbbVie brand observance.

Source-backedEdition Specific

Education Support Professionals Day

18 November 2026; Wednesday of American Education Week · United States / National Education Association professional recognition observance

The National Education Association lists November 18, 2026 as Education Support Professionals Day and states it is observed on the Wednesday of American Education Week.

Source-backedEdition Specific

Education Support Professionals Day (National ESP Day)

Wednesday of American Education Week; 18 November 2026 · United States / NEA education-support recognition

NEA’s American Education Week calendar places Education Support Professionals Day on Wednesday of the week and gives the 2026 date as 18 November.

Source-backedEdition Specific

GIS Day

18 November 2026 · Global / GIS Day first-party event

The official GIS Day site identifies 18 November 2026 as GIS Day and describes it as a global celebration for sharing, teaching and inspiring others with geographic information systems.

Source-backedFixed AnnualIn-depth guide

International Day of Islamic Art

18 November · UNESCO international day

Proclaimed at UNESCO’s 40th General Conference (2019)

Source-backedFixed Annual

International Occult Day

18 November · International / informal occult/esoteric-interest observance

National Today places International Occult Day on November 18 annually, and Calendarr independently lists it on November 18 in 2027.

Source-backedFixed Annual

Mickey Mouse Birthday

18 November · Disney / character anniversary tied to the 1928 debut of Steamboat Willie

Disney/D23 states that November 18, 1928, the debut date of Steamboat Willie, is considered Mickey Mouse’s birthday and continues to celebrate the date.

Source-backedFixed Annual

Minnie Mouse Birthday

18 November · Disney / character anniversary tied to the 1928 debut of Steamboat Willie

Disney/D23 states that Minnie debuted alongside Mickey in Steamboat Willie on November 18, 1928 and that the date is considered both characters’ birthday.

Source-backedFixed Annual

Proclamation of the Republic of Latvia (National Day)

18 November annually · Latvia / national day and independence commemoration

Latvia’s Ministry of Foreign Affairs lists November 18 as the Proclamation of the Republic of Latvia (National Day).

Source-backedRule Based Annual

World COPD Day

Third Wednesday in November · Organizer-backed international observance

Global Initiative for Chronic Obstructive Lung Disease (GOLD)

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 →