What caused the 1945 riot in harlem

The first in New York City in the 20th Century, was the consequence of a lingering unemployment crisis and police brutality. At 2:30 p.m. on March 19, 1935, a 16-year-old black Puerto Rican boy named Lino Rivera stole a 10 cent penknife from the Kress Five and Ten store on 125th Street. HOPE THAT HELPED;)