2024
Later action
World Mental Health Day
Requested the WHO Director-General to support initiatives celebrating 10 October as World Mental Health Day, including for emergency-affected people, and to collaborate with Membe…
Evergreen date guide
What is celebrated on June 1?
See the observances and verified observance-history milestones attached to June 1. Each observance keeps its own source and date details.
Verified history
Today in history →On this date in observance history
Selected observance milestones connected to this date, based on reviewed sources.
2019
First observance
World Reef Day
The 2021 official toolkit calls June 1, 2021 the third year of World Reef Day, supporting June 1, 2019 as the first annual edition.
2016
First observance
World Narcissistic Abuse Awareness Day
WNAAD says the annual summit/observance has been held on the first of June since 2016.
2010
Institutional decision
Day of International Criminal Justice
Assembly of States Parties Review Conference material dates the adoption of the Kampala Declaration to June 1, 2010.
2001
2001
Later action
Farmers’ Day (Ghana)
Codified Farmers Day as a statutory public holiday on the first Friday in December.
2001
First observance
World Milk Day
FAO states that the world first celebrated World Milk Day in 2001 and identifies the annual date as 1 June.
1973
Institutional decision
Confederate Heroes Day
The Texas State Library gives both the approval and effective dates for Senate Bill 60.
Curated global anchors
See the collection →Major global guides on June 1
A reviewed starting point drawn from prominent global observances with strong institutional or organizer sources. Each observance keeps its own documented status and scope.
Source-backedFixed AnnualIn-depth guide
Global Day of Parents
A/RES/66/292
Reviewed depth
Other in-depth guides on June 1
Source-backedFixed AnnualIn-depth guide
Independence Day
Samoa government calendars fix the modern annual Independence Day (Aso Tuto'atasi) on June 1; constitutional evidence separately anchors legal independence to January 1, 1962, so the annual…
Source-backedRule Based AnnualIn-depth guide
June Public Holiday (Ireland)
Workplace Relations Commission / Irish Statute Book
Source-backedFixed AnnualIn-depth guide
Kentucky Statehood Day
Kentucky Historical Society uses “Statehood Day” for June 1 anniversary programming, while Kentucky government sources identify 1 June 1792 as Kentucky’s statehood date.
Source-backedFixed AnnualIn-depth guide
Madaraka Day
Constitution of Kenya, Article 9; Government of Kenya commemoration
Source-backedFixed AnnualIn-depth guide
National Skincare Education Day
The day registry identifies June 1 annually and records Higher Education Skincare as the creator in 2020; current calendar coverage preserves the same recurring date.
Source-backedRule Based AnnualIn-depth guide
Western Australia Day
Western Australian legislation and current government calendars establish Western Australia Day as the state public holiday observed on the first Monday in June; the 2012 Act renamed the lo…
Explore the mix
All topics →Topics represented on June 1
10 observances
All observances on this date
Source-backedFixed AnnualIn-depth guide
Global Day of Parents
A/RES/66/292
Source-backedFixed AnnualIn-depth guide
Independence Day
Samoa government calendars fix the modern annual Independence Day (Aso Tuto'atasi) on June 1; constitutional evidence separately anchors legal independence to January 1, 1962, so the annual…
Source-backedRule Based AnnualIn-depth guide
June Public Holiday (Ireland)
Workplace Relations Commission / Irish Statute Book
Source-backedFixed AnnualIn-depth guide
Kentucky Statehood Day
Kentucky Historical Society uses “Statehood Day” for June 1 anniversary programming, while Kentucky government sources identify 1 June 1792 as Kentucky’s statehood date.
Source-backedFixed AnnualIn-depth guide
Madaraka Day
Constitution of Kenya, Article 9; Government of Kenya commemoration
Source-backedFixed AnnualIn-depth guide
National Skincare Education Day
The day registry identifies June 1 annually and records Higher Education Skincare as the creator in 2020; current calendar coverage preserves the same recurring date.
Source-backedRule Based AnnualIn-depth guide
Western Australia Day
Western Australian legislation and current government calendars establish Western Australia Day as the state public holiday observed on the first Monday in June; the 2012 Act renamed the lo…
Source-backedFixed AnnualIn-depth guide
World Milk Day
Food and Agriculture Organization of the United Nations (FAO)
Source-backedFixed AnnualIn-depth guide
World Narcissistic Abuse Awareness Day
WNAAD first-party material identifies Bree Bonchay as founder, says the initiative was established in 2016 and confirms annual June 1 observance; independent APA and domestic-violence resou…
Source-backedFixed AnnualIn-depth guide
World Reef Day
World Reef Day first-party material identifies June 1 as the annual date, Raw Elements USA as founder, and its 2021 edition as the third year, supporting a 2019 start.
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 →