What are the "incidents" happening in the book?

a peace conference held after the surrender of japan

an international conference held near the end of world war ii

a meeting of the victorious nations after the defeat of germany

a summit meeting between the united states and the soviet union

d. hip hop

it was originated in the 70s while the harlem renaissance occured in the 1920s

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939