The Selma to Montgomery march, also known as Bloody Sunday, was a pivotal event in the Civil Rights Movement that took place in 1965. Led by civil rights activists including Martin Luther King Jr., John Lewis, and others, the march was a demonstration for African American voting rights.

The first attempt to march from Selma, Alabama to the state capital of Montgomery was met with brutal violence on March 7, 1965. State and local law enforcement officers attacked the peaceful marchers with tear gas, billy clubs, and horses on the Edmund Pettus Bridge, leaving many injured. The horrific televised footage of the violence sparked national outrage and became a turning point in the fight for civil rights.

Two days after Bloody Sunday, on March 9, another march was attempted but was halted by Martin Luther King Jr. to prevent further violence. However, a third and successful march began on March 21, protected by federalized National Guard troops and ultimately reaching Montgomery on March 25. This march and the events leading up to it paved the way for the passage of the Voting Rights Act of 1965, which aimed to eliminate discriminatory voting practices that disenfranchised African Americans.