It was a rare occurrence in Tuscaloosa at the school's week-long Rush activities.
Gamma Phi Beta, a traditionally white sorority, offered a membership bid to a black student on Monday.
Carla Ferguson, a freshman from Tuscaloosa, accepted the bid immediately. She was the only black female to participate in this year's week-long Rush activities.
Ferguson's mother attended the event and said she was proud of her daughter and the historical moment.
Christina Houston, who joined the sorority in 2000, described herself as having a mixed racial background.
Integration of the university's sororities and fraternities received media scrutiny in 2000 and 2001 when black student Melody Twilley of Camden lost her bid to join a mostly white sorority.