The 20 sources are:
1. Political cartoon first created in 1754 during the French and Indian War, later used as a symbol of the American Revolution
2. 1762 engraving of King George III
3. 1766 political cartoon depicting a mock funeral for the Stamp Act, after it was repealed
4. 1770 engraving depicting the Boston Massacre
5. Various firsthand accounts of the Boston Massacre, 1770
6. 1846 lithograph titled The Destruction of Tea at Boston Harbor, December 1773
7. 1774 political cartoon titled, "Bostonians Paying the Excise Man"
8. Depictions of Paul Revere’s Ride in 1775
9. 1775 map of the town and harbor of Boston and the surrounding area, showing the road to Concord and the various encampments of British and colonial troops
10. 1876 illustration depicting Patrick Henry delivering his famous speech to the Virginia Assembly in 1775
11. John Trumbull’s 1818 painting of the committee presenting its draft of the Declaration of Independence at the Second Continental Congress in July 1776
12. Engraving showing the destruction of the statue of King George III in New York City, July 9th, 1776
13. The first official broadside of the Declaration of Independence that included the names of the signers, 1777
14. 1777 political cartoon titled, "Poor Old England endeavoring to reclaim his wicked American children"
15. Painting of British troops leaving Saratoga, New York, after defeat by U.S. General Horatio Gates, October 1777
16. Depictions of life during the winter at Valley Forge, 1777
17. 1779 British political cartoon during the American Revolution
18. Recollections of an enslaved African American in the Revolutionary Army, 1777–1783
19. Depictions of heroines of the American Revolution, 1777–1783
20. The surrender of British General Cornwallis to the joint efforts of George Washington and the French navy, 1781
8½" x 11"