Historical eventJuly 91811

David Thompson (explorer)

British explorer David Thompson posted a notice at the confluence of the Columbia and Snake Rivers (in modern Washington state, U.S.), claiming the area for Great Britain.

Everything on July 9Original source

In context

When
Tuesday, July 9 1811215 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
19th century · 1810s
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 1811.

What happened

British explorer David Thompson posted a notice at the confluence of the Columbia and Snake Rivers (in modern Washington state, U.S.), claiming the area for Great Britain.

July 9 through the years

Other entries on the same calendar day, in order.

  1. 1811David Thompson (explorer)
  2. 1997LATAM Airlines Brasil
  3. 19991999 Iranian student protests
  4. 2002African Union
  5. 2004Senate Report on Iraqi WMD Intelligence
  6. 2006Italy national football team
  7. 2006S7 Airlines Flight 778
  8. 2008Nuclear program of Iran
  9. 2011South Sudan
  10. 2011Bersih 2.0 rally
  11. 2025Earth's rotation

Also in 1811

  • December 26Richmond, VirginiaSeventy-two people died when a theater in Richmond, Virginia, was destroyed by fire, becoming the worst urban disaster in American histor…
  • November 28Ludwig van BeethovenBeethoven's Piano Concerto No. 5 premiered at the Gewandhaus in Leipzig.
  • July 30Miguel Hidalgo y CostillaMiguel Hidalgo y Costilla (depicted), a leader of the Mexican War of Independence, was executed by Spanish forces in Chihuahua City, Mexico.
  • December 161811–1812 New Madrid earthquakesThe first two in a series of four severe earthquakes struck the Midwestern United States and made the Mississippi River appear to run bac…
  • November 7Tecumseh's WarTecumseh's War: American forces led by William Henry Harrison defeated the forces of Shawnee leader Tecumseh's growing confederation at t…
  • May 20Charles Marsh SchombergA British squadron under Charles Marsh Schomberg defeated a French force off Tamatave, Madagascar, that was attempting to reinforce the F…
  • February 19Peninsular WarPeninsular War: Outnumbered French forces under Édouard Mortier routed and nearly destroyed Spanish troops at the Battle of the Gebora ne…
  • May 16Peninsular WarPeninsular War: Allied British, Spanish, and Portuguese forces clashed with French troops at the Battle of Albuera fought south of Badajo…

Everything we record for 1811 →

Sources

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“David Thompson (explorer)”, What's On This Date, https://whatsonthisdate.com/app/event/david-thompson-explorer-1811-july-9, accessed October 29, 2026.

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Questions about this entry

When did David Thompson (explorer) happen?

July 9 1811 — 215 years ago, on a Tuesday.

Where does this text come from?

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

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