Answer:
Registration of black voters.
Explanation:
"Freedom summer" was a civil rights project, organized by several civil rights organizations, among CORE (Congress on Racial Equality) and SNCC (Student Non-Violent Coordinating Committee), with the objective to register those who were African - American in the state of Mississipi, USA, in order to vote.
In 1962, Mississippi held the lowest level of black voters, with less than 7% of the state's black population register to vote. Racial segregation was a problem with many edges replicating across the country: not only most black people lived in poverty and were unable to get a decent job, but also they had some 'rules' to live apart from white people, for example, they had to use different bathrooms, eat in different parts of a restaurant and attend to different schools, among other things. Black people also were forbidden to vote. When they started to claimed their rights, many were angry about this and fought it back with raw violence.
Those who organized "Freedom Summer" project, brought white students and "influencers" from across the country because they thought it would expose the racial troubles and the government would take over, reinforcing the civil rights. They also held a 'black voting' in parallel with the national voting in 1964.
The project was a difficult task, charging with the death of three black workers, and not many African-American were actually able to register to vote. But as the media covered and showed all the violence and violation of civil rights against black people, the country raised the consciousness of the enormous trouble.
Although many objectives could not be achieved, this project marked an important turning point.