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The Project Mercury program starts in 1958. It becomes the United States first man-in-space program.They had 2 goals: putting a human in orbit around the Earth, and doing it before the Soviet Union, as part of the early space race. It succeeded in the first but not the second. -
A monkey Sam was sent into space on December 4, 1959 on Little Joe (4). This mission was successful with a weightless time of 3 minutes and 13 seconds.
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They accomplished one of two of their goals of putting a human in orbit around the Earth on May 5, 1961 on FREEDOM 7 by Alan B. Shepard, Jr. this suborbital flight successfully put the first american in space. -
Virgil I. Grissom went up on LIBERTY BELL 7. This successful flight sank shortly after splashdown.
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John H. Glenn, Jr. made a 3 orbit flight that placed the first American into orbit on FRIENDSHIP 7