Over the years, the holiday and march has been an opportunity to comment on current events through the lens of Dr. King's fight for civil rights.
Members of Black Lives Matters and the Fight for $15 campaign are holding their first joint action on Tuesday in two dozen cities, including Atlanta, Chicago, Las Vegas and Denver.
It seemed that each marcher felt they were channeling Martin Luther King Jr.'s mission in their own way. Though interpretations of his unifying message took different forms, it seemed that everyone shared a vision of hope.
The lawsuit filed Friday in state court is believed to be the first court test of new Colorado rules intended to ease conflicts arising when oilfields overlap with growing cities.