Historical eventMarch 261975

Biological Weapons Convention

The Biological Weapons Convention, the first multilateral disarmament treaty banning the production of an entire category of weapons, entered into force.

Everything on March 26Original source

In context

When
Wednesday, March 26 197551 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
20th century · 1970s
Recorded from
Wikipedia “On this day” feed

At a glance

Dates: From 1972-04-10.

Place: Washington, D.C..

Type: treaty and multilateral treaty.

What happened

History While the history of biological warfare goes back more than six centuries to the Siege of Caffa in 1346 CE, [ 1 ] international restrictions on biological warfare began only with the 1925 Geneva Protocol , which prohibits the use but not the possession or development of chemical and biological weapons. [ 2 ] Upon ratification of the Geneva Protocol, several countries made reservations regarding its applicability and use in retaliation. [ 3 ] Due to these reservations,

The Biological Weapons Convention (BWC), or Biological and Toxin Weapons Convention (BTWC), is a disarmament treaty that effectively bans biological and toxin weapons by prohibiting their development, production, acquisition, transfer, stockpiling and use. The treaty's full name is the Convention on the Prohibition of the Development, Production and Stockpiling of Bacteriological (Biological) and Toxin Weapons and on their Destruction.

March 26 through the years

Other entries on the same calendar day, in order.

  1. 1975Biological Weapons Convention
  2. 1997Heaven's Gate (religious group)
  3. 1997Rancho Santa Fe, California
  4. 1998Algerian Civil War
  5. 1999Jack Kevorkian
  6. 2005Taiwan
  7. 2009Tesla Model S
  8. 2010ROKS Cheonan (PCC-772)
  9. 2010Torpedo
  10. 20172017–2018 Russian protests
  11. 2024Francis Scott Key Bridge (Baltimore)

Also in 1975

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  • October 22Venera 9The Soviet uncrewed space mission Venera 9 lands on Venus.
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Everything we record for 1975 →

Sources

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“Biological Weapons Convention”, What's On This Date, https://whatsonthisdate.com/app/event/biological-weapons-convention-1975-march-26, accessed October 25, 2026.

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Questions about this entry

When did Biological Weapons Convention happen?

March 26 1975 — 51 years ago, on a Wednesday.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

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