| Description | Year | % Correct |
|---|---|---|
| The end of World War I | 1918 | 99%
|
| Sinking of the Titanic | 1912 | 93%
|
| Assassination of John F. Kennedy | 1963 | 93%
|
| Attack on Pearl Harbor | 1941 | 92%
|
| Adolf Hitler came to power in Germany | 1933 | 91%
|
| The start of World War II | 1939 | 91%
|
| First Man on the Moon | 1969 | 91%
|
| Martin Luther King Jr. gave his "I Have a Dream" speech | 1963 | 81%
|
| Formation of the United Nations | 1945 | 79%
|
| Wedding of Prince Charles and Lady Diana of the U.K. | 1981 | 73%
|
| Joseph Stalin becomes leader of the Soviet Union | 1927 | 69%
|
| Launch of Sputnik satellite | 1957 | 68%
|
| Tim Berners-Lee invents the World Wide Web | 1990 | 54%
|
| First Nobel Prize awarded | 1901 | 49%
|
| First successful ascent of Mount Everest | 1953 | 44%
|
| Steve Wozniak invents the Apple I computer | 1976 | 40%
|
| Google is founded by Larry Page and Sergey Brin | 1998 | 39%
|
| First Academy Awards presented | 1929 | 38%
|
| World population reaches 2 billion | 1927 | 22%
|
| World population reaches 5 billion | 1987 | 20%
|