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int64
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3
When did the following event happen? First crewed descent to the deepest point on Earth, the Mariana Trench.
[ "January 7, 1960", "January 16, 1960", "January 22, 1960", "January 26, 1960" ]
2
When did the following event happen? J. R. R. Tolkien publishes The Fellowship of the Ring, the first volume of The Lord of the Rings.
[ "July 1, 1954", "July 10, 1954", "July 27, 1954", "July 29, 1954" ]
3
When did the following event happen? Prime Minister Indira Gandhi declares a state of emergency in India, suspending civil liberties and elections.
[ "June 15, 1975", "June 20, 1975", "June 23, 1975", "June 25, 1975" ]
3
When did the following event happen? Eugene B. Ely lands on the deck of the USS Pennsylvania stationed in San Francisco harbor, marking the first time an aircraft lands on a ship.
[ "January 1, 1911", "January 7, 1911", "January 15, 1911", "January 18, 1911" ]
3
When did the following event happen? Xinhai Revolution, which overthrew the Qing dynasty of China, begins.
[ "October 4, 1911", "October 10, 1911", "October 11, 1911", "October 26, 1911" ]
1