North America 1846: Oregon Treaty

Main Events

17–18 May 1846 Capture of Matamoros

The United States Army of Occupation under General Zachary Taylor crossed the Rio Grande from Fort Brown into undisputed Mexican territory and occupied Matamoros (which had been abandoned by the Mexican garrison).in wikipedia

20 May–5 Aug 1846 Overthrow of Mariano Paredes

A liberal revolt starting in Guadalajara, Mexican Republic, encouraged General Jose Mariano Salas to mutiny in Mexico City and depose conservative President Mariano wikipedia

10 Jun–9 Jul 1846 Bear Flag Revolt

Encouraged by the nearby presence of a United States military expedition under John C. Fremont, American immigrants in the Mexican territory of Alta California rebelled, gaining control of Sonoma and raising a flag with the image of a bear and the words “California Republic” on it; they held out against Mexican opposition until the arrival of the US wikipedia

15 Jun 1846 Oregon Treaty

The United Kingdom and the United States signed the Oregon Treaty, bringing an end to the Oregon boundary dispute by dividing the jointly occupied Oregon Country (known to British as Columbia Department) between the US and British North America. The treaty was negotiated by US Secretary of State James Buchanan, who later became president, and Richard Pakenham, British envoy to the US. In accordance with the treaty the border was set at the 49th parallel with the exception of Vancouver Island, which was retained in its entirety by the wikipedia