Oregon Treaty

Historical eventJune 151846

Oregon Treaty

The Oregon Treaty extends the border between the United States and British North America, established by the Treaty of 1818, westward to the Pacific Ocean.

Everything on June 15Original source

In context

When
Monday, June 15 1846180 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
19th century · 1840s
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 1846.

What happened

The Oregon Treaty between the United Kingdom and the United States was signed on June 15, 1846, in Washington, D.C. The treaty brought an end to the Oregon boundary dispute by settling competing American and British claims to the Oregon Country through partition. The area had been jointly occupied by both Britain and the U.S. since the Treaty of 1818.

June 15 through the years

Other entries on the same calendar day, in order.

  1. 1846Oregon Treaty
  2. 1977Death and funeral of Francisco Franco
  3. 1978Hussein of Jordan
  4. 1988Ariane 4
  5. 1991Mount Pinatubo
  6. 19911991 eruption of Mount Pinatubo
  7. 1992Supreme Court of the United States
  8. 19951995 Aigio earthquake
  9. 1996The Troubles
  10. 2006George W. Bush
  11. 2013June 2013 Quetta attacks

Also in 1846

  • June 14Sonoma, CaliforniaSettlers in Sonoma began rebelling against Mexico, later proclaiming the California Republic and raising a homemade flag with a bear and…
  • July 11Death of Frederick John WhiteBritish soldier Frederick John White died after a flogging, leading to a campaign to end the practice in the British Army.
  • December 24Sultanate of Brunei (1368–1888)The Sultanate of Brunei ceded the island of Labuan to the British Empire.
  • June 28Adolphe SaxBelgian musician Adolphe Sax patented his design of the saxophone (example pictured).
  • June 19BaseballThe first officially recorded baseball game in U.S. history using modern rules was played in Hoboken, New Jersey, with the "New York Nine…
  • September 19La Salette-FallavauxNear La Salette-Fallavaux in southeastern France, shepherd children Mélanie Calvat and Maximin Giraud reported a Marian apparition, now k…
  • October 10William LassellEnglish astronomer William Lassell discovered Triton, the largest moon of Neptune.
  • June 9Hamilton, OntarioHamilton, Ontario (skyline pictured), was granted city status by the Parliament of the Province of Canada.

Everything we record for 1846 →

Sources

Cite this page

“Oregon Treaty”, What's On This Date, https://whatsonthisdate.com/app/event/oregon-treaty-1846-june-15, accessed October 29, 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 Oregon Treaty happen?

June 15 1846 — 180 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.

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