Answer:
the death of a young black man
Step-by-step explanation:
a young black man was swimming in Lake Michigan on July 27th, 1919 and accidentally went into the area of the lake that was reserved for white people. he was stoned to death and drowned. the police refused to arrest the man who did it and rumors spread. eventually, everybody was outraged and mobs broke out between both whites and african americans. eventually, they became the race riots.