How and why America has incarcerated so many of its citizens, particularly its African-American citizens

In the history of the United States there have been very marked stages of racism that have dissipated over the years. Civil rights were signed, equality and equity was arriving, although being a man of African descent in the United States is seen as synonymous with being a danger for the common imagination. Many citizens are imprisoned for their crimes, many times Afro-descendants are imprisoned because their environments or ghettos have violent tendencies due to statistics or police reports. The answer is more complex than it seems. Much depends on how the man of African descent is looked today and how the law sees it in a way not as egalitarian as it would be with other more conservative ethnic groups.