Final answer:
The Mississippi Freedom Summer was a campaign to protest disenfranchisement in Mississippi, where students taught reading skills and local activists formed a political party. The tragedy that occurred during this campaign was the murders of three civil rights workers.
Step-by-step explanation:
The Mississippi Freedom Summer was a sustained campaign by local African Americans and college students throughout the nation to protest continued disenfranchisement in Mississippi and throughout the South. During the Freedom Summer, students taught reading skills to adults wishing to pass literacy tests, and local activists formed their own political party to protest their exclusion from the white-controlled Democratic Party of Mississippi.
One tragic event that occurred during the Mississippi Freedom Summer was the murders of three civil rights workers, James Chaney, Michael Schwerner, and Andrew Goodman. They were killed by the Ku Klux Klan with the help of police. This event highlighted the extreme violence and resistance faced by those who were working to register African American voters in Mississippi.