Which of the following was the reason for Congress to organize Oregon as a formal American territory?
A)The killing of most of the Native Americans in Oregon
B)The settling of a border along the 49th parallel
C)The killing of fourteen settlers by a group of Cayuse Indians
D)The discovery of gold in this territory
E)The British deciding to move out of this territory

Question

Quizplus · Accepted Answer

The killing of fourteen settlers by a group of Cayuse Indians prompted Congress to organize Oregon as a formal American territory.

Which of the Following Was the Reason for Congress to Organize