Question

which was the first satellite in the world​

Answer 1

$\huge\mathfrak\red{Answer :) }$

Sputnik 1 was the first satellite in the world

On October 4, 1957, the Soviet Union stunned everyone by launching the world's first artificial satellite, Sputnik 1. It was an event that galvanized the world and spurred the fledgling U.S. space effort into high gear. No one who was alive at that time can forget the electricity of the moment when humans first lofted a satellite into orbit.