Listen to a Rare Recording of Martin Luther King’s 1964 Nobel Peace Prize Lecture

A rare audio recording of Dr. Martin Luther King Jr.’s 1964 Nobel Peace Prize Lecture has been made widely available in its entirety for the first time since King delivered the speech in Oslo, Norway.

King, who gave the lecture on Dec. 11, 1964, received the prize for his work toward ending against racial segregation and accepted it on behalf of the Civil Rights Movement. Unlike the text version of the speech that has previously been published, the audio of King’s lecture ends with King quoting the same spiritual he references in his famous “I Have a Dream” speech: “Free at last! Free at last! Thank God Almighty, we are free at last!”

In a statement, Clayborne Carson, the director of the King Institute at Stanford University, called the lecture one of King’s “most important speeches.” “It lays out his goals for the remainder of his life,” he said. “He also addresses the problems of racial injustice, poverty and war as global evils rather than specific American problems.”