Historical eventAugust 231775

George III

King George III issued a proclamation that declared elements of the American colonies of Great Britain to be in a state of "open and avowed rebellion".

Everything on August 23Original source

In context

When
Wednesday, August 23 1775251 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
18th century · 1770s
Recorded from
Wikipedia “On this day” feed

Russia, Greece and some other countries used the Julian calendar into the early 20th century, so local records may show a date up to 13 days earlier.

At a glance

Dates: From 1775.

What happened

George III was King of Great Britain and Ireland from 25 October 1760 until his death in 1820. During his reign, the Acts of Union 1800 merged Great Britain and Ireland into the United Kingdom. He was concurrently duke and prince-elector of Hanover in the Holy Roman Empire before becoming King of Hanover on 12 October 1814. He was the first monarch of the House of Hanover who was born in Great Britain, spoke English as his first language, and never visited Hanover.

August 23 through the years

Other entries on the same calendar day, in order.

  1. 1775George III
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  9. 20132013 Palmasola prison riot
  10. 2023Chandrayaan-3
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Also in 1775

  • September 11American Revolutionary WarAmerican Revolutionary War: Benedict Arnold's expedition departed from Cambridge, Massachusetts, as part of the invasion of Quebec.
  • June 17American Revolutionary WarAmerican Revolutionary War: British forces took Bunker Hill outside of Boston, Massachusetts.
  • October 27George IIIKing George III expanded on his Proclamation of Rebellion in the Thirteen Colonies in his speech from the throne at the opening of Parlia…
  • December 9American Revolutionary WarAmerican Revolutionary War: After their loss in the Battle of Great Bridge, British authorities were forced to evacuate from the Colony o…
  • September 25American Revolutionary WarAmerican Revolutionary War: Ethan Allen and a small force of American and Quebec militia failed to capture the city of Montreal from Brit…
  • May 31American RevolutionAmerican Revolution: The Committee of Safety of Mecklenburg County, North Carolina, adopted the Mecklenburg Resolves, which annulled and…
  • June 12Thomas GageThomas Gage, the governor of the Province of Massachusetts Bay, offered a general pardon to colonists who remained loyal to Britain.
  • November 13American Revolutionary WarAmerican Revolutionary War: American forces captured Montreal without significant opposition as part of the Invasion of Quebec.

Everything we record for 1775 →

Sources

Cite this page

“George III”, What's On This Date, https://whatsonthisdate.com/app/event/george-iii-1775-august-23, accessed October 27, 2026.

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Questions about this entry

When did George III happen?

August 23 1775 — 251 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?

Use the ready-made citation near the sources at the bottom of the page, and follow the source link to cite the underlying record as well.

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