The Selma to Montgomery march, also known as "Bloody Sunday," was a pivotal moment in the American Civil Rights Movement. It took place in March 1965 in Selma, Alabama, and was organized by civil rights activists to protest the denial of voting rights to African Americans. The march was met with violent resistance from state and local law enforcement, resulting in the brutal beating of unarmed protesters and widespread public outrage.

The events of Bloody Sunday galvanized support for the Civil Rights Movement and led to the passage of the Voting Rights Act of 1965, which prohibited racial discrimination in voting practices. The march was a significant step forward in the fight for equality and justice for African Americans in the United States.