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Who became the first American to orbit Earth, in 1962?

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  1. John Glenn
  2. Alan Shepard
  3. Gus Grissom

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References

  1. NASA, John H. Glenn www.nasa.gov/people/john-glenn Checked 2026-10-10.
  2. NASA History, Friendship 7 www.nasa.gov/history/friendship7 Checked 2026-10-10.

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