USA HISTORY

Detailed explanation-1: -The 1847 murders of frontier missionaries Marcus and Narcissa Whitman near the confluence of the Columbia and Walla Walla Rivers brought the Oregon Territory under tighter American control and set off a chain of events that forced the Columbia Plateau Indians onto reservations.

Detailed explanation-2: -Whitman Mission NHS works with the Confederated Tribes of the Umatilla Indian Reservation to tell the story of this place, visit their website to learn more about their history and how they are teaching their heritage today.

Detailed explanation-3: -On November 29, 1847, a small group of Cayuse Indians attack the Whitman Mission near Walla Walla in what will become known as the Whitman Massacre. Dr.

Detailed explanation-4: -The story of the massacre shocked the United States Congress into action concerning the future territorial status of the Oregon Country. The Oregon Territory was established on August 14, 1848.

Detailed explanation-5: -In 1850, five Cayuse warriors were captured by the military and tried for the murder of the Whitmans. All five were convicted by a military commission and hanged on June 3, 1850.