| Term | Definition |
| Texas Governor | The Texas Constitution of 1845 set two-year terms for |
| Free African Americans | Group of people who engaged in political activity by petitioning the government and going to court |
| Convention | a political meeting of delegates to select candidates |
| Constitution | What document protected the system of slavery? |
| Mexican-American War | War caused by extension of slavery, westward expansion, and disputes of boundaries |
| John Slidell's visit to Mexico | Resulted in fighting between U.S. forces and the Mexican Army |
| Treaty of Guadalupe-Hidalgo | Treaty that gave U.S. all territory from Texas to the California for $15 million, and gave Mexicans in this area U. S. Citizenship |
| Mexican Cession | Transferred the vast area of land from Mexico to the U.S. |
| Panna Maria | A town in Karnes County |
| Alabama-Coushatta | A Native American group that lived peacefully during the 1850s on a reservation in Polk County |