| Hint | Year | Country | % Correct |
|---|---|---|---|
| Put a man on the moon * | 1969 | United States | 100%
|
| Put a satellite into orbit | 1957 | Soviet Union | 98%
|
| Surpass 1 billion in population | 1982 | China | 91%
|
| Build a steam-powered passenger railroad | 1825 | United Kingdom | 88%
|
| Circumnavigate the globe | 1522 | Spain | 84%
|
| Host the modern Olympic Games | 1896 | Greece | 82%
|
| Build a high speed rail system | 1964 | Japan | 77%
|
| Control the entire Mediterranean Sea * | 44 | Roman Empire | 72%
|
| Build a hot-air balloon | 1783 | France | 70%
|
| Control a territory larger than modern-day Russia | 1200s | Mongolia | 68%
|
| Sail from Europe to India | 1498 | Portugal | 68%
|
| Win the FIFA World Cup | 1930 | Uruguay | 66%
|
| Ban chewing gum * | 1992 | Singapore | 63%
|
| Legalize gay marriage | 2000 | Netherlands | 62%
|
| Build a structure taller than 100 meters high | c. 2600 BC | Egypt | 58%
|
| Fire a rocket into space | 1944 | Germany | 51%
|
| Gain independence from the French colonial empire | 1804 | Haiti | 43%
|
| Have more than 1/3rd of the world population * | c. 500 BC | Persian Empire | 28%
|
| Adopt Christianity as a state religion | 301 | Armenia | 23%
|
| Perform a heart transplant | 1967 | South Africa | 23%
|