The land and its first peoples
Think of the land as zones from east to west: the farmed and busy East, the wide, dry, grassy Great Plains (once called the "Great American Desert"), the high Rocky Mountains and the Sierra Nevada, then the fertile Pacific coast.
The Plains were home to many Indigenous nations, such as the Lakota (Sioux), Cheyenne and Comanche. Many were nomadic: they moved with the bison. The bison gave food, hides for tipis and clothes, and bones for tools. Land was shared by the group, not owned by one person. Bands were led by chiefs and councils, and spiritual life linked people to nature.
Settlers saw land as something to fence, farm and own. This difference in ideas about land caused deep conflict.
Why settlers went west
Push factors (reasons to leave): an economic crash in 1837, crowded cities, poor farm land in the east.
Pull factors (reasons to go): cheap or free land, gold, fresh starts.
Manifest Destiny (1845 phrase): the belief that Americans had a God-given right to spread across the whole continent. It was used to justify taking land.
- Oregon Trail (from 1843): families in wagons, about 3,200 km and 4–6 months; dangers were disease, river crossings, weather and running out of food.
- Mormons: a religious group facing attacks in the east. Led by Brigham Young they moved in 1846–47 to the Salt Lake valley and farmed the desert by sharing water. Their practice of polygamy (more than one wife) caused tension with the government until they gave it up in 1890, and Utah became a state in 1896.
- California Gold Rush (1848–49): around 300,000 people arrived within a few years. Towns sprang up overnight; miners' law was rough.
- After a war with Mexico (1846–48), large areas of the south-west came under US control.
Conflict and the Civil War
Slavery and new lands: each new territory raised a question — would it allow slavery or not? Deals like the Compromise of 1850 and the Kansas-Nebraska Act (1854) failed to settle it. Violence in "Bleeding Kansas" and the election of Abraham Lincoln in 1860 led southern states to leave the Union. The Civil War lasted 1861–1865; the North won and slavery was ended.
Rising conflict on the Plains: the Fort Laramie Treaty (1851) set areas for Plains nations, but settlers, miners and railroads kept crossing them. Gold in the Black Hills (sacred to the Lakota) led to war. At the Little Bighorn (1876) Lakota and Cheyenne warriors defeated General Custer's force, but the army then pressed harder and most bands were forced onto reservations within a year.
Settling the West and the end of the frontier
After the Civil War: the nation was rebuilt (Reconstruction). Freed African Americans gained rights in law, though many were later taken away in the South. Some, called Exodusters, moved west to farm in Kansas.
Homesteaders: the Homestead Act (1862) gave 160 acres to anyone who farmed it for 5 years. Life was hard: little wood or water, droughts, locusts. Solutions: sod houses, wind pumps, barbed wire (1874), dry farming and new strong wheat.
Railroad (1869): linked east and west, carried settlers and cattle, and made towns grow. Cattle trails and cowboys moved herds to railheads; later fences and hard winters ended the open range.
Policy towards Plains nations after 1865: bison were hunted from tens of millions to fewer than 1,000 by 1889, destroying the Plains way of life. Reservations shrank. The Dawes Act (1887) split reservation land into family plots and sold the "extra" land. Children were sent to boarding schools that banned their languages. The killing of Lakota people at Wounded Knee (1890) marked the end of armed resistance. In 1890 the census said there was no longer a clear frontier line.
Try it: a cause-and-effect chain
Write these on cards and arrange them as a chain of arrows: gold found → rush of miners → trails cross Plains lands → treaties broken → conflict → reservations. Add two more cards of your own (for example, railroad → bison hunters arrive). Then use the year slider in free play to check the order. Which link do you think mattered most? Write one sentence with a reason.
Key formulas and definitions
- Manifest Destiny: belief in a right to spread across the continent
- Push factor: reason to leave; pull factor: reason to go
- Homestead Act 1862: 160 acres after 5 years of farming
- Transcontinental railroad: completed 1869
- Reservation: land set aside for an Indigenous nation
- Dawes Act 1887: reservation land split into family plots
- Frontier: edge of settlement; declared closed 1890
- Timeline: 1843 Oregon Trail · 1848–49 Gold Rush · 1861–65 Civil War · 1862 Homestead Act · 1869 railroad · 1876 Little Bighorn · 1887 Dawes Act · 1890 Wounded Knee
Worked examples
1. Sort into push and pull: crowded eastern cities; free land; the 1837 economic crash; gold in California.
Push: crowded cities, the 1837 crash. Pull: free land, gold.
2. Explain one way the railroad changed the West.
It cut travel from months to about a week, so many more settlers arrived and cattle could be shipped east to sell. Towns grew beside the tracks.
3. Why did the killing of the bison matter so much to the Plains nations?
The bison gave food, shelter, clothing and tools. Without it, nomadic life was impossible, so people were forced to depend on reservations and government food.
4. How did westward expansion help cause the Civil War?
Each new territory raised the question of whether slavery would be allowed. North and South could not agree, compromises broke down, and the split widened until war began in 1861.
Common mistakes
- Calling the Plains "empty". Many nations lived there for centuries.
- Thinking Manifest Destiny was a law. It was a belief used to justify expansion.
- Mixing up the Homestead Act (land for farmers, 1862) and the Dawes Act (splitting reservation land, 1887).
- Seeing the Little Bighorn as the end of the wars. It was a Lakota victory, but it led to harsher army action.