Answer :

The 1950s when Russia sent the first artificial satellite "Sputnik 1" (1957) https://history.state.gov/milestones/1953-1960/sputnik#:~:text=On%20October%204%2C%201957%2C%20the,accomplish%20this%20scientific%20advancement%20first.

Answer:

1950's

Explanation:

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