what event three weeks after the march on washington showed americans that change was needed?

The Klu Klux Klan bombed an “African American Baptist church in Birmingham”, Alabama, on September 15th, 1963.

Explanation:

On the morning of 15th September 1963, America suffered the biggest loss in his history. On that morning, the members of Klu Klux Klan had planned an attack in America. The “16th Street Baptist” “Church in Birmingham”, “Alabama”, a place for and African American gathering where they together worked for civil rights and held campaigns went through a bomb attack. That shocking attack killed four girls and injured hundreds of people resulting into casualties. This event showed Americans that change was needed.

The Birmingham church bombing.

answer; slavery should be outlawed in the new country, was part of the initial draft of the declaration of independence, but not part of the final

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