"Bloody Sunday" refers to the events of March 7, 1965, when civil rights activists marched from Selma to Montgomery, Alabama, to demand voting rights. The peaceful marchers were met with violent resistance from law enforcement at the Edmund Pettus Bridge. This confrontation was widely televised, shocking the nation and drawing attention to the civil rights movement. The brutality of Bloody Sunday led to widespread outrage and support for the cause. It prompted President Lyndon B. Johnson to propose the Voting Rights Act, which aimed to eliminate racial discrimination in voting. The act was signed into law on August 6, 1965, marking a significant victory for the civil rights movement.