The 1950s. Right after World War ll
Answer: Colonization and imperialism.
Explanation:
The effects of Spanish research have left a deep mark on North and South America. The first concrete effect of this research was the mass colonization of Europeans in those parts of the world. Europeans thus spread their culture, customs, traditions, and economic doctrines. Eventually, they colonized the parts above the world and contributed to imperialism, primarily in Europe. For many natives, these procedures were catastrophic. There was an occupation of their land, the emergence of slavery, and the liquidation of the natives. In North America, there is a mass extermination of natives by the appearance of notched diseases to which they had no immunity. The destruction of the culture, customs, and assimilation of the natives is a side effect of colonization.
