Critic Mary Jane Lupton states that "Angelou's ultimate greatness will be attributed" to her most well-known poem, "On the Pulse of Morning", and that Angelou's "theatrical" performance of it, as seen when she recited it, at the 1993 inauguration of Bill Clinton, used skills she learned as an actor and speaker, marking a return to the African-American oral tradition of speakers such as Frederick Douglass, Martin Luther King Jr. and Malcolm X. Angelou was the first poet to read an inaugural poem since Robert Frost at the 1961 inauguration of John F. Kennedy, and the first Black and woman. Her recitation resulted in more fame and recognition for her previous works, and broadened her appeal "across racial, economic, and educational boundaries".