"British novelist Doris Lessing won the 2007 Nobel Prize for literature on Thursday for a body of work that looked unflinchingly at society's ills and inspired a generation of feminist writers. Lessing... more inside

Last night, during Obama's acceptance speech, he said "It's been a long time coming, but tonight, because of what we did on this day, in this election, at this defining moment, change has come to America." This song is the classic Civil Rights Movement piece he was referencing.