Lyndon B. Johnson is a significant figure in Black history for his role in the civil rights movement. Johnson became president following the assassination of President John F. Kennedy in 1963 and worked closely with civil rights leaders to advance legislation that would secure equal rights for African Americans.

In 1964, Johnson signed the Civil Rights Act into law, which prohibited discrimination based on race, color, religion, sex, or national origin. This landmark legislation was a major victory for the civil rights movement and was a crucial step towards dismantling segregation and advancing equal rights for African Americans.

Johnson also signed the Voting Rights Act of 1965, 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 instrumental in increasing Black voter registration and participation in the political process.

Overall, Lyndon B. Johnson's crucial support for civil rights legislation during his presidency marked a significant turning point in the fight for racial equality in the United States, making him an important figure in Black history.