The war ended on feb. 2 1848 by signing mexico in on the treaty of Guadalupe-Hidalgo. 525,000 square miles was given to the all-so growing USA.
The farthest point west that the Civil War was fought was in Tucson, AZ - Pichaco Pass.
Ivan III "the great" is the Ruler of Russia that defeated the Mongols. He tripled the territory of Russia under his rule and laid the foundations for the Russian state.
