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Evergreen date guide

What is celebrated on July 18?

See the observances and verified observance-history milestones attached to July 18. Each observance keeps its own source and date details.

Verified history

On this date in observance history

Today in history →

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

2010
First observance

World Listening Day

The WLP announcement explicitly invites participation in the first World Listening Day on this date.

2009
First observance

Nelson Mandela International Day

The UN draft resolution recalls worldwide participation in the inaugural Mandela Day held on 18 July 2009; A/RES/64/13 then designated the UN day beginning in 2010.

2009
Precursor

Nelson Mandela International Day

The Nelson Mandela Foundation-led international campaign and inaugural Mandela Day preceded the General Assembly designation of 18 July as Nelson Mandela International Day beginni…

1940
Institutional decision

National Day

Government report 14/1990 gives the date of the government meeting at which August 15 was declared the state holiday.

About this date

What this date contains

4 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.

2 have a country-specific scope

Country-specific observances are not presented as worldwide events.

4 have in-depth guides

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

Curated global anchors

Major global guides on July 18

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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 July 18

Source-backedFixed AnnualIn-depth guide

Jura de la Constitución

18 July annually · Uruguay / national holiday context

Uruguay government sources identify 18 July with the Jura de la Constitución, while the Ministry of Labour includes 18 July in the national holiday calendar.

Source-backedFixed AnnualIn-depth guide

National Sour Candy Day

18 July · United States / American Licorice Company-created informal sour-candy observance

American Licorice Company currently maintains National Sour Candy Day campaign material, while National Day Calendar identifies American Licorice Company as founder in 2015 and July 18 as t…

Source-backedFixed AnnualIn-depth guide

World Listening Day

18 July annually · World Listening Project / global listening and acoustic-ecology campaign

The World Listening Project states that each year communities program World Listening Day activities on 18 July, the birthdate of R. Murray Schafer.

Explore the mix

Topics represented on July 18

All topics →
Community, Causes & Advocacy 2Civic, Remembrance & History 1Food, Drink & Hospitality 1
4 observances

All observances on this date

Source-backedFixed AnnualIn-depth guide

Jura de la Constitución

18 July annually · Uruguay / national holiday context

Uruguay government sources identify 18 July with the Jura de la Constitución, while the Ministry of Labour includes 18 July in the national holiday calendar.

Source-backedFixed AnnualIn-depth guide

National Sour Candy Day

18 July · United States / American Licorice Company-created informal sour-candy observance

American Licorice Company currently maintains National Sour Candy Day campaign material, while National Day Calendar identifies American Licorice Company as founder in 2015 and July 18 as t…

Source-backedFixed AnnualIn-depth guide

World Listening Day

18 July annually · World Listening Project / global listening and acoustic-ecology campaign

The World Listening Project states that each year communities program World Listening Day activities on 18 July, the birthdate of R. Murray Schafer.

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 →