Answer:
1. Joint control of the Oregon country for ten years.
Step-by-step explanation:
The Convention of 1818 was a treaty between the United States and Britain that set the 49th parallel of latitude as the boundary between British North America and the US across the West. Therefore, they decided and agreed upon Oregon county to be controlled jointly by both the United States and Britain.
This treaty resolved standing boundary issues between the two nations. The treaty allowed for joint occupation and settlement of the Oregon Country, known to the British and in Canadian history as the Columbia District of the Hudson's Bay Company, including the southern portion of its sister district New Caledonia.