Answer:
Explanation: After being considered inferior beings to whites and being subjected to slavery in earlier times, the lives of African Americans gradually changed for good, especially since the Third Amendment was promulgated in December 1865, where abolition was established of slavery in most states of the country. In the same way it happened with the Fourteenth Amendment where said population was obtaining benefits such as US citizenship. Continuing with the fifteenth amendment, which promulgated the right to vote to the African-American population. All these were positive factors that improved their quality of life notoriously.
The correct answer is if it would shorten the war or save American lives.
This rationale helps us to understand why Truman ended up using bombs on Hiroshima and Nagasaki. After hearing from military generals and other personnel, it was estimated that a land invasion of mainland Japan would need another D-Day style invasion in order to be successful. This type of large scale invasion would likely cost 500,000 American casualties. However, the use of the atomic bomb would not cost any American casualties and could potentially lead to less Japanese casualties than the invasion. In the end, Truman uses this information to make his final decision regarding the atomic bomb.
John Quincy Adam’s won the election
Railroads not only led to an increase in the ability to transport raw materials, but they also led to an increase in the ability to transport people, meaning that cities around the US started to take shape and function.