Preaching a message of nonviolent resistance, the Rev. Martin Luther King ... As we pause to remember King’s legacy, here’s a look back at his defining years in pictures.

Michelle Obama is celebrating the work of Dr. Martin Luther King Jr. Moments before ... which accompanied an image of King, alongside the MLK quote, "The time is always right to do what is right." ...

Photo: Getty Images. Andrew Young III, son of civil-rights pioneer Andrew Young II, reflects on the inauguration of President Barack Obama on Martin Luther King Day. Home Browse Series Live Q&A ...