Answer: The fifteenth United states amendment had a good impact on the African American population. This 15th Agreement granted African American men the freedom to vote by stating that "the right of people of the United States to vote shall not be restricted or abridged by the United States or any State for reasons of race, colour, or prior condition of servitude."
The third option is the answer
The answer would be the Pilgrims. :) Sorry if wrong.
Answer: Most likely the industrial revolution.
Explanation: The use of machines in production became more and more prevalent, eventually many factories were built in cities which caused pollution therefore making the air gross.
