Question

1. Movement What was the first territory to be added to the United States after 1783?

2. Region What present-day states were part of the Mexican Cession?

Answer 1

1. Tge Louisiana purchase was completed in 1803 under President Thomas Jefferson.
2.Area of the present day U.S. that Mexici agreed to give up as part of the Treaty of Guadalupe Hidalgo, which ended the Mexican American War. States of California, Nevada, and Utah and also parts of Arizona,Colorado, N.M and Wyoming

Answer 2

1. The louisiana purchase was the first one to be added to the united states after 1783.
2.Texas,California, Nevada, Utah, most of Arizona, about half of NewMexico, about a quarter of Colorado, and a small section of Wyoming.