What area on the map did the United States acquire After signing A treaty with Great Britain

The number 1 on the map labels Oregon Territory. In 1818, the United States and Great Britain signed a treaty in which both countries agreed to jointly control Oregon Country, an area that extended to parallel 54°40′ north.

Explanation:

the answer to your question is,

old stone age.

-mabel < 3

answer; control group;