President Lyndon B. Johnson played a significant role in Black history, particularly for his leadership during the civil rights movement. Johnson served as the 36th President of the United States from 1963 to 1969, following the assassination of President John F. Kennedy.

One of Johnson's most notable contributions to Black history was his support for and eventual signing of the Civil Rights Act of 1964. This landmark legislation outlawed discrimination based on race, color, religion, sex, or national origin, and ended segregation in public places. Johnson's advocacy and political skill were instrumental in pushing this legislation through Congress.

Furthermore, President Johnson signed the Voting Rights Act of 1965 into law, which aimed to overcome legal barriers that prevented African Americans from exercising their right to vote. This legislation helped to significantly increase Black voter registration and political participation.

Despite these accomplishments, Johnson's presidency is also marked by his administration's escalation of the Vietnam War, which drew attention away from his domestic policy achievements, including advancements in civil rights for African Americans.

Overall, President Lyndon B. Johnson's efforts in advancing civil rights and ending racial discrimination have left a lasting impact on Black history in America.