Boxing legend Muhammad Ali, U.S. Attorney General Eric Holder and rapper Nasir “Nas” Jones are among the 2015 recipients of Harvard’s W.E.B. DuBois Medal.

This year’s winners will gather Wednesday at Harvard for an awards ceremony and panel discussion. Ali, who is battling Parkinson’s disease, will appear via a video link.

The medal honors those who have made significant contributions to African and African-American history and culture, intercultural understanding and human rights.

Other 2015 recipients include Marian Wright Edelman, founder and president of the Children’s Defense Fund; Mellody Hobson, president of Ariel Investments and chairman of the board of Ariel Investment Trust; Charlayne Hunter-Gault, the first black woman to enroll in the University of Georgia; and artist Carrie Mae Weems.

DuBois was an acclaimed author, historian and civil rights activist.