1. ??????

2. Monroe Doctrine

3. ??????

4. Fourteenth Amendment

5. ??????

6. Civil War

7. ??????

8. Frontier

9. ??????

10. Executive

11. ??????

12. Compromise

13. ??????

14. Propaganda

15. ??????

16. e pluribus unum

17. ??????

18. Capitalism

19. ??????

20. Second Great Awakening

21. ??????

22. Levels of Government

23. ??????

24. Nineteenth Amendment

25. ??????

26. Legislative

27. ??????

28. Constitution

29. ??????

30. Urbanization

31. ??????

32. Industrialization

33. ??????

34. Nativism

35. ??????

36. Manifest Destiny

37. ??????

38. Declaration of Independence

39. ??????

40. Reservation

41. ??????

42. Innovation

43. ??????

44. Immigration

45. ??????

46. Harlem Renaissance

47. ??????

48. Judicial

49. ??????

50. Bill of Rights

51. ??????

52. The Great Migration