Answer:
The high incidence of disease spread from Europeans to
American Indian populations
weakened American Indian tribes significantly, making them more vulnerable to European invasion.
Explanation:
The population of American Indian tribes was greatly decimated by diseases, especially smallpox and other communicable diseases. Most of the diseases were brought by the Europeans who had developed immunity to the diseases, and as a result did not suffer from the diseases but were able to spread the diseases whenever they had contact with the native Indian tribes.
<span> the </span>Cold War<span> had begun. African Americans united and organized, and a triumph of the </span>Civil Rights Movement<span> ended </span>Jim Crow<span> segregation in the South.</span><span>Further laws were passed that made discrimination illegal and provided federal oversight to guarantee voting rights.</span>
Changes: Constitutional end to slavery and granted citizenship and voting rights.
Continuities: Blacks continued to work on plantation lands doing much the same work as before 1865. They were segregated from whites and often were not given the right to vote.