The Dawes act forced Native Americans to move on to reservations and assimilate to white culture and with the Native Americans out of the way Settlers could move anywhere they wanted without fear
Mexico won its indpendence from Spain on Sep 16, 1810.
After the split from the supercontinent, the individual continents underwent a number of changes of their shoreline. For example, the constant flow of water "smoothed" the surface, which meant that in some parts the land decreased (was washed away by the currents) and in other parts the land increased with the accumulation of the material that the currents brought.
This changed the shape of the continents in a way that they no longer "fit" together perfectly.
He got to become a government
