Historical eventSeptember 251775

American Revolutionary War

American Revolutionary War: Ethan Allen and a small force of American and Quebec militia failed to capture the city of Montreal from British forces.

Everything on September 25Original source

In context

When
Monday, September 25 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: 1775-04-19 – 1783-09-03.

What came before

Prelude to war Main article: American Revolution Further information: American Enlightenment , Colonial history of the United States , Thirteen Colonies , and French and Indian War Map showing the territorial gains of Great Britain and Spain following the French and Indian War with lands held by the British prior to 1763 (in red), land gained by Britain in 1763 (in pink), and lands ceded to the Kingdom of Spain in secret during 1762 (in light yellow). The French and Indian War,

What happened

The American Revolutionary War, also known as the Revolutionary War or American War of Independence or simply the American Revolution, was the armed conflict that comprised the final eight years of the broader American Revolution, in which American Patriot forces organized as the Continental Army and, commanded by George Washington, defeated the British Army. The conflict was fought in North America, the Caribbean, and the Atlantic Ocean. The war's outcome seemed uncertain for most of the war,

September 25 through the years

Other entries on the same calendar day, in order.

  1. 1775American Revolutionary War
  2. 1981Belize
  3. 1983Maze Prison escape
  4. 1985Palestine Liberation Organization
  5. 1987Penaia Ganilau
  6. 1990Ram Rath Yatra
  7. 1992NASA
  8. 1997Space Shuttle Atlantis
  9. 1998PauknAir Flight 4101
  10. 20032003 Tokachi earthquake
  11. 2018Bill Cosby

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…
  • August 23George IIIKing George III issued a proclamation that declared elements of the American colonies of Great Britain to be in a state of "open and avow…
  • 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

“American Revolutionary War”, What's On This Date, https://whatsonthisdate.com/app/event/american-revolutionary-war-1775-september-25, accessed October 27, 2026.

Cite the underlying source as well — the source links above go to the record this entry is adapted from.

Questions about this entry

When did American Revolutionary War happen?

September 25 1775 — 251 years ago, on a Monday.

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.

Text adapted from Wikipedia under CC BY-SA 4.0 and from Wikidata (CC0). Images come from Wikimedia Commons; credit and licence are shown with each image. Editorial entries are © What's On This Date. Sources & licensing · How this site works.