Tribal warfare was common among the Plains Indians, but the aim wasn't necessarily to kill or seize land, but to perform acts of bravery such as stealing horses and counting coup (getting close enough to an enemy to touch him)
Medicine men and medicine women were spiritual leaders
Native American religion was closely linked with nature, believing humans were part of nature, not masters over it
Most tribes believed in a Great Spirit which created the world, and that everything in nature contained spirits which they needed to keep on their side
The US government and its citizens wanted to settle the North American continent, which meant the Native Americans living on the land would need to be moved elsewhere
1. Some of the land that settlers wanted to farm was occupied by Native American tribes
2. Many US citizens saw the Native American way of life as inferior and wanted them to be moved off the land so that it could be farmed and settled
3. In 1830, the Indian Removal Act was passed under President Andrew Jackson, authorising the president to grant tribes land on the Great Plains in exchange for their land in the East
4. By 1840, most of the eastern tribes had been moved onto the Plains - around 70,000-100,000 people in total
5. The intention was that Native Americans would live on the Great Plains, while settlers farmed land in the East - the Plains would be like one large Indian reservation
At this point, white Americans viewed the Plains as 'The Great American Desert' and believed its harsh climate and lack of wood and water made it unsuitable for settling
Settlers began to move across the Plains towards the west coast
This created conflict between settlers and the Plains Indians, as the Plains Indians didn't like settlers moving across their land and the two groups couldn't live together - the nomadic culture of the Plains Indians clashed with the desire of settlers to fence off and settle the land
Only about 8% of early migrants to California during the Gold Rush were women, more followed later as their husbands and families settled in California
The belief that the US was destined to occupy and govern all of North America, and that they were superior to Native Americans and should civilise the continent
Beef grew in popularity in the 1850s as there was a large demand in northern markets
Cattle drives began in Texas in the late 1860s when cattle ranchers drove herds northwards to sell them at higher prices
In 1872, Congress passed the Timber Culture Act which gave people free trees to plant on their lands, encouraging settlement further west
During the Civil War, many Union soldiers took over ranches and farms in the west, leading to resentment from Confederate sympathisers who formed vigilante groups like the Ku Klux Klan