Achondroplasia is one of the most common types of dwarfism. Learn about its causes, diagnosis, and treatment. Achondroplasia is one of the most common types of dwarfism.
Westward Expansion (1807-1912) The Surge West. Summary. The westward movement of the American population occurred in intermittent flurries of settlement. The first began early in the nation's history, resulting in the statehood of Vermont, Kentucky, Tennessee, and Ohio, all of which were admitted to the Union between 1791 and 1803.
The Homestead Act. Another spike in westward migration came with the Homestead Act of 1862 and similar bills in the 1870s. Beginning on New Year's Day, 1863, individuals could apply for a 160-acre homestead west of the Mississippi River.The land was free, but in order to get the deed, the owner had to build a 12x14' home and grow crops for five years.he Homestead Act of 1862 and other similar legislation encouraged more settlement by giving away free land in the Great Plains to individuals.