By james art 
The month of black history is an annual observance in the United States, which focuses on the celebration of history, heritage, cultural influence and social contribution of Afro -American.
It is also time to remember the struggle for generations of racial equality in the country that saw its maximum and low low throughout the history of the Independent Republic.
Some of the younger low levels in the cause of equality among the races have happened from the end of the American Civil War to the years before the launch of modern civil rights movement.
This period of time was observed quite violent white supremacy, as mafia, which were sometimes assisted by local authorities, caused the chaos of the black communities.
Here are the seven major racing massacres that took place in the United States.