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The First Atomic Explosion
The first atomic explosion happened in the U.S.A down in New Mexico, 120 miles south of Santa Fe. -
Atomic Bombings In Japan
This when the A-bomb was born and used. -
Soviet Development of Nuclear Weapons
The Soviets successfully tested their first nuclear weapon at Semipalatinsk. -
Sputnik
Sputnik was the first ever satellite in space sent by the soviets -
Laika
Laika was the first animals ever to go into space -
Yuri Gagarin
He was the first man ever into space and to orbit the earth -
Alan Shepard
He was the first american ever to into space and was only 3 weeks after Yuri Gagarin