Ok on wekipedia i just had this same question.
This is the answer for slit
There were many such things, for example, systematic racism. African-Americans were still living in poverty or didn't have civil rights and segregation was strong. They could only join white communities if they were musicians or things like that where they would have to play for white guests of parlors. It wasn't until the 60s that the African-American people were given their civil rights.
To cause no war on japan.
The Boston Massacre was a street fight that occurred on March 5, 1770, between a "patriot" mob, throwing snowballs, stones, and sticks, and a squad of British soldiers<span>. It resulted in 5 dead patriots, and 6 injuries. Reactions were swift an angry, so it became one of the greatest contributing factors to the War for American Independence.</span>