The Selma to Montgomery march, also known as Bloody Sunday, was a significant event in the Civil Rights Movement that took place in 1965. The march was a nonviolent protest organized by civil rights activists to demand equal voting rights for African Americans in Alabama. On March 7, 1965, marchers attempted to cross the Edmund Pettus Bridge in Selma, but were met with violent resistance by state troopers who attacked the peaceful demonstrators with clubs and tear gas.

The brutal attack on the marchers, which was captured on national television, outraged the country and drew widespread attention to the issue of voting rights in the South. This event, known as "Bloody Sunday," galvanized support for the Civil Rights Movement and led to the eventual passage of the Voting Rights Act of 1965.

Following the events of Bloody Sunday, Dr. Martin Luther King Jr. and other civil rights leaders organized a successful march from Selma to Montgomery, the capital of Alabama, to protest against voter suppression and discrimination. The march, which took place over several days in March 1965, brought national attention to the issue of voting rights and was a turning point in the fight for civil rights in America.