Depends. If you mean the first thing past the Karaman line (the point where atmosphere ends and space begins) then it was a V-2 Rocket launched by Nazi Germany in June of 1944. If you mean first thing orbiting then it was Sputnik.
The first thing sent into space was the Nazi Germans V-2 rocket in the Second World War.
Animals were the first living thing in space.
monkeys
a dog
Satellite
the first thing is go to space is satellite
The first thing sent into outer space was a satellite
The first thing sent into space was the Nazi Germans V-2 rocket in the Second World War.
Animals were the first living thing in space.
A dog orbited the earth as the first living thing to go out in space
dog
a dog
monkeys
Satellite
Explorer 1, a small space probe.
it was a dog
first human to walk in space