Respuesta :

he was the first American to orbit the earth.

Answer: orbit the earth

Explanation:

In 1962, with three orbits around the Earth, John Glenn is  the first American Astronaut to do so.

John Glen was selected in NASA in 1959. He flew Friendship 7 mission on 20th February, 1962. He was the first American to orbit the Earth. He took three rounds about the Earth.