Statistics for Which year in the 20th Century?

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Description	Year	% Correct
The end of World War I	1918	98%
Sinking of the Titanic	1912	94%
Assassination of John F. Kennedy	1963	94%
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	90%
Martin Luther King Jr. gave his "I Have a Dream" speech	1963	81%
Formation of the United Nations	1945	76%
Wedding of Prince Charles and Lady Diana of the U.K.	1981	74%
Launch of Sputnik satellite	1957	68%
Joseph Stalin becomes leader of the Soviet Union	1927	67%
Tim Berners-Lee invents the World Wide Web	1990	55%
First Nobel Prize awarded	1901	50%
First successful ascent of Mount Everest	1953	41%
Steve Wozniak invents the Apple I computer	1976	40%
Google is founded by Larry Page and Sergey Brin	1998	38%
First Academy Awards presented	1929	36%
World population reaches 2 billion	1927	21%
World population reaches 5 billion	1987	19%