Answer:
set the boundary between the Missouri Territory in the United States and British North America (later Canada) at the forty-ninth parallel.
Step-by-step explanation:
The Convention of 1818 set the boundary between the Missouri Territory in the United States and British North America (later Canada) at the forty-ninth parallel. Both agreements reflected the easing of diplomatic tensions that had led to the War of 1812 and marked the beginning of Anglo-American cooperation.