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Evergreen date guide

What is celebrated on June 18?

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

Date authority profile

What this date contains

5 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.

2 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 June 18

Source-backedFixed AnnualIn-depth guide

Sustainable Gastronomy Day

18 June · FAO / United Nations / international observance

A/RES/71/246

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Topics represented on June 18

All topics →
Civic, Remembrance & History 2Food, Drink & Hospitality 2Community, Causes & Advocacy 1
5 date-resolved records

All observances on this date

Source-backedFixed Annual

Constitution Day

18 June annually · Seychelles / national observance

Seychelles official sources list Constitution Day on 18 June, and State House describes it as observed annually.

Source-backedEdition Specific

Martyrdom Day of Sri Guru Arjan Dev Ji

18 June 2026 · India / Sikh remembrance; Haryana state function evidence

Haryana government records a state-level function on June 18, 2026 for the 420th Martyrdom Day of Sri Guru Arjan Dev Ji; the stored evidence is edition-specific.

Source-backedFixed AnnualIn-depth guide

Sustainable Gastronomy Day

18 June · FAO / United Nations / international observance

A/RES/71/246

Source-backedRule Based Annual

World Tapas Day

Third Thursday of June · Spanish tapas and culinary-culture observance

Spain's official tourism portal

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 →