Unit 3

2. Farming system that trapped freedmen in debt after the Civil War
3. President known for the Indian Removal Act
5. Growing network that helped connect the country and speed migration west
6. Conflict caused by British impressment of sailors
8. Movement to end slavery
11. 1803 land deal that doubled the size of the U.S.
15. Invention that improved transportation and powered factories
16. Third president to approve the Louisiana Purchase
17. 1861–1865 conflict between North and South
19. Government policy forcing Native Americans off their lands
23. President who expanded the U.S. to the Pacific during the Mexican-American War
24. Supreme Court ruling declaring African Americans were not citizens
25. Machine invented by Eli Whitney that increased cotton production
27. Conductor on the Underground Railroad who rescued enslaved people
28. Communication device that used electric signals over wires
29. Belief that the U.S. was destined to expand westward
30. Law allowing popular sovereignty over slavery in two new territories

1. President during the Civil War who issued the Emancipation Proclamation
4. Post–Civil War era aimed at rebuilding the South
7. Senator known as the “Great Compromiser”
9. Agreement that included California as a free state and a stronger Fugitive Slave Act
10. Secret network helping enslaved people escape to freedom
12. 1820 agreement balancing free and slave states
13. Conflict sparked by border disputes between the U.S. and Mexico
14. Forced migration of Cherokee people to the West
18. Freedom from slavery, granted officially by the 13th Amendment
20. "Father of the Constitution"
21. Former enslaved man who became a leading abolitionist writer and speaker
22. Union general who became president after the Civil War
26. Chief Justice who strengthened federal power in landmark decisions