Because the U.S declared that the people of Kansas and Nebraska can vote on to be a slave or free state, in this case northerners rushed there to make it a free state, this whole thing also caused bleeding Kansas
The federal government was the George Washington in convention
Correct answer choice is :
2) The Soviet Union’s surprising launch of Sputnik into Earth’s orbit
Explanation:
The Space Race leads to the 20th-century contest among two Cold War opponents, the Soviet Union and the United States, for dominance in spaceflight ability. The Space Race starts in 1957 and the U.S. and the Soviet Union are clasped into the Cold War. The Soviet Union has just begun the world's first satellite, Sputnik. Afraid of Soviet military control of space, the Americans immediately ready a rocket.
The British Army sustained many casualties.
