| Hint | Answer | % Correct |
|---|---|---|
| Civilization that built Machu Picchu | Incas | 97%
|
| Religion founded in 622 AD | Islam | 91%
|
| Modern-day name of Constantinople | Istanbul | 89%
|
| Northern Irish terrorist group | IRA | 86%
|
| Country once called the Dutch East Indies | Indonesia | 84%
|
| Epic poem attributed to Homer | The Iliad | 83%
|
| Russian Tsar whose reign saw the conquest of Siberia | Ivan the Terrible | 78%
|
| Figurative barrier between Communist and Western Europe | Iron Curtain | 77%
|
| Her marriage to Ferdinand united Spain | Isabella | 77%
|
| "Revolution" that started in Britain circa 1760 | {Industrial} Revolution | 67%
|
| Country first settled in 874 AD | Iceland | 61%
|
| Catholic institution used to prosecute heretics | Inquisition | 56%
|
| Famous German military decoration | Iron Cross | 53%
|
| Name used by 13 "guiltless" Popes | Innocent | 51%
|
| Confederation of six northeast Native American tribes | Iroquois | 41%
|
| Arab word for uprising. Palestine has had two. | Intifada | 28%
|
| Elite unit of 10,000 Persian soldiers | Immortals | 17%
|
| Spanish title for a prince | Infante | 15%
|