The Battle of Wounded Knee (1890) clearly marks the closing of the American Frontier.
It was this year, 1890, when the Census Bureau declared the American Frontier closed because all the land within the United States were claimed.
The Homestead Act (1862) offered public lands to anyone who settles in the land for a minimum of 5 years. This lead to the surge of American and immigrants moving to territories that have long been occupied by the Native Americans.
The transcontinental railroad (1869) made it possible for people and goods to be transported and traded to other places.
Mexican Cession. Mexican Cession lands were captured in the Mexican–American War in 1846–48, and ceded by Mexico in the Treaty of Guadalupe Hidalgo, where Mexico agreed to the present Mexico–United States border except for the later Gadsden Purchase.
In a Mesopotamian society there were three social classes. Nobility, free citizens and slaves . Nobility includes priests and priest kings. Free people was a combination of modern day middle and lower class. Middle were made up of merchants, craftsmen etc.
