What activities were the 3 workers engaged in when they went missing? 1964

Freedom Summer, also known as the Freedom Summer Project or the Mississippi Summer Project, was a volunteer campaign in the United States launched in June 1964 to attempt to register as many African-American voters as possible in Mississippi. Blacks had been restricted from voting since the turn of the century due to barriers to voter registration and other laws. The project also set up dozens of Freedom Schools, Freedom Houses, and community centers in small towns throughout Mississippi to aid the local Black population.

i think they should to be honest

explanation: