| Year | Action | Answer | % Correct |
|---|---|---|---|
| 1919 | Officially ends WWI or the Franco-Prussian War | Treaty of {Versailles} | 87%
|
| 1955 | Allies Central and Eastern European communist states | {Warsaw} Pact | 84%
|
| 1763 | Ends the Seven Years' War... or the American Revolution... or the Crimean War... | Treaty of {Paris} | 82%
|
| 1215 | King John agrees to a royal charter of rights | Magna Carta | 78%
|
| 1803 | United States buys 530 million acres of land from France | Louisiana Purchase | 70%
|
| 1648 | Ends the Thirty Years' War and the Dutch War of Independence | Peace of {Westphalia} | 52%
|
| 1494 | Divides the New World between Spain and Portugal | Treaty of {Tordesillas} | 51%
|
| 1939 | Soviet Union and Germany agree not to attack each other and secretly divide up Poland | {Molotov-Ribbentrop} Pact | 45%
|
| 1598 | King Henry VI grants Huguenots substantial rights | Edict of {Nantes} | 42%
|
| 1814 | Ends the War of 1812 | Treaty of {Ghent} | 37%
|
| 1713 | Ends the War of the Spanish Succession and confirms Philip as king | Treaty of {Utrecht} | 34%
|
| 1815 | Ends the Napoleonic Wars, creates the German Conferedation, neutralizes Switzerland | Final Act of the {Congress of Vienna} | 25%
|
| 1968 | Limits the spread of nuclear weapons through disarmament and other means | {Non-Proliferation} Treaty | 20%
|
| 1951 | Formally ends the war between the Allies and Japan | Treaty of {San Francisco} | 19%
|
| 1992 | Allows unarmed surveillance flights over participants, possible US withdrawal due to alleged Russian violations | Treaty on {Open Skies} | 7%
|