Answer:
Columbian Exchange
Explanation:
The exchange of goods and services between the Native Americans and the Europeans was called the Columbian Exchange.
Answer:
Mao set the scene for Cultural Revolution by "disinfecting" powerful officials of questionable loyalty who were based in Beijing. His approach was less than transparent, achieving this purge through newspaper articles, internal meetings, and employing the network of political allies.
The answer is c, mccarthyism. though it isnt a period of history, but rather a mindset.
Steak engine made water power obsolete
