| Term | Definition |
| Manifest destiny | this was the 19th century belief that American had the "right and duty" to expand |
| Transcontinental Railroad | First mode of transportation that would take Americans from coast to coast. It was completed in 1869 |
| Oregon Trail | One of the main routes traveled by American westward migrants during the 1800's |
| Elizabeth Cady Stanton | a woman who wrote the Declaration of Sentiments, worked for women's suffrage and helped start the women's rights movement |
| Susan B Anthony | a woman who fought for womens' suffrage and the abolition of slavery, she was honored on American currency |
| Crazy Horse | Sioux Chief that led his warriors to victory against George Custer in 1876. There are no known pictures of him |
| Sitting Bull | Native American Sioux leader who fought against US troops in the Northern Great Plains during the 1800's |
| James K Polk | the 11th U.S. President, he led the country during the Mexican War and sought to expand the United States |
| Custer's last stand | 1876 battle between the U.S. Army and the Sioux and Cheyenne Indians. it resulted in the slaughter of over 200 US troops |
| Wounded Knee | An 1890 massacre of over 200 Sioux Indians at a camp in South Dakota. This was the last conflict between whites and Indians |