The launching of D. Sputnik started the space race
A: Trainloads of tourists killed buffalo purely for sport.
Answer: The early 20th century was an era of business expansion and progressive reform in the United States. The progressives, as they called themselves, worked to make American society a better and safer place in which to live. They tried to make big business more responsible through regulations of various kinds. They worked to clean up corrupt city governments, to improve working conditions in factories, and to better living conditions for those who lived in slum areas, a large number of whom were recent immigrants from Southern and Eastern Europe.
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Answer: Black codes came before Jim Crow laws and black codes were designed during reconstruction to ‘return’ freed slaves back to their status as well as deny them property while Jim Crow laws were segregation laws that prohibit interracial mixing after reconstruction
Explanation: