Martin Luther King, Jr.'s wife kept his legacy alive after his assassination in 1968. A prolific journalist and author, she advocated a number of causes, continuing her husband's philosophy of non-violent protest.

Scott King wasn't quiet while her husband was alive either, joining other activists in the Montgomery Bus Boycott. When Ghana became the first African nation to go independent (they shook off the British), Scott King went across the pond to witness the era-shifting occasion. She even used her musical background from college to throw some freedom concerts, kind of like Mahalia Jackson. You could say she was a Renaissance woman.

Scott King's public speaking abilities made her the first woman to speak at Harvard during "Class Day," which is an event that happens during the school's commencement. (Apparently, regular commencement is just not up to snuff in Cambridge.) (Source)

Along with her activity during the Civil Rights Movement, Scott King protested the war in Vietnam, supported pro-labor movements, and ran anti-poverty programs. (Source)

In the '80s she was one of the high-profile American voices speaking out against South African apartheid. Her prolific activity reflected the scope of the movement led by King and other activists. This thing wasn't just about racism in America: it was also about peace and equality worldwide. (Source)