In celebration of slain civil rights leader Rev. Martin Luther King, Jr's birthday, President Obama and First Lady Michelle Obama will attend a church service at the Vermont Avenue Baptist Church in Washington D.C. today. Speaking at the historic 144-year-old African American congregation nearly 42 years ago--mere months before his death--Dr. King delivered a sermon entitled "In Search of a Direction," at a time when his stance on the Vietnam War made him unpopular. President Obama is expected to deliver remarks reflecting on Dr. King's words. Celebrate the 45th year anniversary of Dr, King's Nobel Peace Prize win. Read about other African Americans who have won the Nobel Peace Prize.