When did Harry S. Truman end the Jim crow laws?

Harry S. Truman did not officially end Jim Crow laws, as these were state and local laws enforcing racial segregation, primarily in the Southern United States. However, he took significant steps toward civil rights during his presidency, notably by desegregating the armed forces in 1948 through Executive Order 9981. His administration laid the groundwork for the Civil Rights Movement, but the complete dismantling of Jim Crow laws occurred later, particularly during the 1960s with the Civil Rights Act of 1964 and the Voting Rights Act of 1965.