Since the beginning of the XIX century, thousands of Americans were leaving the more densely populated eastern United States and headed west of the Mississippi, in a completely foreign country, called the Great Plains. New England residents rushed to the rich forests of Oregon, and the people of the southern states populated expanses of Texas, New Mexico and California.

The main vehicle of the immigrants were drawn by horses or oxen wagons. In the way of caravans went from dozens of vans each. In order to get from the Mississippi Valley to the Pacific Ocean, this caravan took an average of about six months.

Grass grew on the West, which is easily endured not only drought, but also cold. Therefore, cattle settlers could live all year round for grazing. In the vastness of Texas feral descendants of wandering cows imported by Spanish colonists. They were engaged in catching the Cowboys. These cows were bred settlers with their cattle and so were withdrawn famous Texas Longhorns.

The American West was inhabited by Indians, who were driven from their land by giving them in return barren reservations. White hunters mercilessly slaughtered buffalo hunting of which was for many tribes the main source of sustenance. Together with the white settlers in the West came a new infectious disease. So how could the Indians resisted the resettlement of white on the West and armed clashes between the Indians and the settlers almost did not stop throughout the XIX century. Periodically erupts into major conflicts involving