The
Provisional Government of Oregon was a popularly elected settler government created in the
Oregon Country, in the
Pacific Northwest region of North America. It existed from May 2, 1843 until March 3, 1849, and provided a legal system and a common defense amongst the mostly
American pioneers settling an area then inhabited only by the many
Indigenous Nations. Much of the region's geography and many of the Natives were not known by people of European descent until several exploratory tours were authorized at the turn of the 18th and 19th centuries. The
Organic Laws of Oregon were adopted in 1843 with its preamble stating that settlers only agreed to the laws "until such time as the United States of America extend their jurisdiction over us." According to a message from the government in 1844, the rising settler population was beginning to flourish among the "savages", who were "the chief obstruction to the entrance of civilization" in a land of "ignorance and idolatry."