LYNCHBURG, Va. (AP) — Former President Jimmy Carter will deliver the keynote address at Liberty University's commencement in May.

The university has previously hosted two other U.S. presidents for commencement, both while still in office. George H.W. Bush spot at the 1990 graduation, while President Donald Trump spoke at last year's commencement.

Carter's address is scheduled for May 19.

Since leaving office in 1981, Carter has written 31 books and has been a key supporter and advocate for Habitat for Humanity.

In 1982, Carter and his wife, Rosalynn, established The Carter Center, a non-profit organization focused on resolving conflict, advancing democracy and human rights, preventing diseases and improving mental health care.