In 2014, protesters ringed the White House, chanting, "How many black kids will you kill? Michael Brown, Emmett Till!" Why did demonstrators invoke the name of a black boy murdered six decades before? In 1955, white men in the Mississippi Delta lynched a fourteen-year-old from Chicago named Emmett Till. His murder was part of a wave of white terrorism in the wake of the 1954 Supreme Court decision that declared public school segregation unconstitutional....

In the hot and deadly summer of 1964, the nation could not turn away from Mississippi. Over 10 memorable weeks known as Freedom Summer, more than 700 student volunteers joined with organizers and local African Americans in a historic effort to shatter the foundations of white supremacy in one of the nation's most segregated states -- even in the face of intimidation, physical violence, and death.