No clue what to say to this, i've seen it posted on this website here before tho
In the 17th century, England became focused on developing social changes such as interrelationship with other countries, family history, art and different religions came out coming from the Protestants. Civil wars were also evident but although this was happening, England was at the same time experiencing prosperity.
Well in the American Revolution, British forces under General William Howe did defeat Patriots forces under General George Washington at the Battle of Brooklyn in New York. so British
After the World War II and all of the terrors witnessed through it on ethnic and racial basis, the international community was determined that something like that should never happen again, and that all humans are equal and deserve the same rights.
That benefited the African American population in the United States a lot, as they now had the basis and support with which they were able to push through to gain all of the rights they deserve, thus be equal with all of the rest. That led to the formation of multiple organizations for the rights of the African Americans, widespread propaganda, protests, and eventually it gave a positive result, with the African Americans gaining all of the rights they deserved, but also putting the racism aside in the American society.