Lyndon B. Johnson, the 36th President of the United States, played a significant role in advancing civil rights for African Americans during his time in office from 1963 to 1969. Johnson came into office following the assassination of President John F. Kennedy and worked to continue Kennedy's civil rights agenda.

One of Johnson's most notable achievements was the passage of the Civil Rights Act of 1964, which outlawed discrimination based on race, color, religion, sex, or national origin. This landmark legislation was a major victory for the civil rights movement and helped to shape the future of race relations in the United States.

Johnson also signed the Voting Rights Act of 1965 into law, which aimed to overcome legal barriers at the state and local levels that prevented African Americans from exercising their right to vote. This legislation was crucial in increasing African American voter registration and representation in government.

Despite his contributions to civil rights, Johnson's presidency was also marked by the escalation of the Vietnam War, which led to criticism and protests from the civil rights movement and other activists. Overall, Johnson's legacy in Black history is complex, but his efforts to advance civil rights legislation have had a lasting impact on the fight for racial equality in America.