Is the land east of Appalachian mountains acquired as aresult civil war true or false?

The land east of the Appalachian Mountains was acquired by the United States as a result of the French and Indian War, not the Civil War. The French and Indian War was a conflict between Great Britain and France over control of North America. The war ended with the Treaty of Paris in 1763, which gave Great Britain control of all French territory in North America east of the Mississippi River. This included the land east of the Appalachian Mountains.