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Which of these events took place FIRST?

A) launch of Sputnik I
B) U.S. lands on the moon
C) NASA's begins Project Mercury
D) Soviets launch permanent space station

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Answer:

A. The Launch of Sputnik I

Explanation:

Sputnik was launched in 1957, whereas NASA's Project Mercury took place in 1963. The first man walked on the moon in 1969, and the Soviet space station was launched in the 80s.

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