Observance history

On this day: November 1

Verified milestones connected to this date, including first observances, institutional decisions, later actions and documented precursors.

Verified history

Verified milestones on November 1

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

2021
First observance

National Biologic Coordinators Day

The campaign states that starting in 2021, November 1 would be known as National Biologic Coordinators Day, while the registry describes the first day in 2021.

2012
First observance

National Bison Day

WCS states that the Vote Bison Coalition celebrated the inaugural National Bison Day on 1 November 2012.

2010
Later action

Día de la Batalla de Rivas

Amended the Labor Code so April 11 each year, Day of the Battle of Rivas, is enjoyed and commemorated on the calendar date itself.

1994
First observance

World Vegan Day

The Vegan Society states that the first World Vegan Day was held on 1 November 1994.

1988
Later action

Geologist Day

Rosnedra historical material states that Geologist Day was defined as a professional holiday under the 1988 decree.

1976
Institutional decision

Waitangi Day

New Zealand Legislation lists both assent and commencement on November 1, 1976.

1976
Later action

Waitangi Day

Repealed the New Zealand Day Act 1973 and restored the name Waitangi Day while retaining February 6 as the public holiday.

1921
Institutional decision

Marine Corps Birthday

Marine Corps history dates Lejeune’s order to November 1, 1921.

What this page includes

This page focuses on observance-related milestones with an exact verified date. Month-only or ambiguous historical claims are left out.

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