The Brotherhood of Sleeping Car Porters was a labor union founded in 1925 to represent African American porters working on trains. These porters provided essential services to passengers in sleeping cars, but they faced discrimination and low wages. The union aimed to improve working conditions and secure better pay for its members. Led by figures like A. Philip Randolph, the Brotherhood became a significant force in the labor movement. It played a crucial role in advocating for civil rights and social justice, helping to pave the way for future advancements in labor rights for African Americans and other marginalized groups.