What event three weeks after the March on Washington showed Americans that change was needed

The bombing of an African American Baptist church in Birmingham, Alabama, on September 15th, 1963, by the Klu Klux Klan.

Explanation:

d is the answer. leo should include the source.

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.