When we think of Martin Luther King Jr., we often think of the civil rights leader and icon. But beneath this layer, another side of MLK was a brilliant economic thinker with a vision of financial equality for all Americans.

The life and legacy of Dr. Martin Luther King Jr. will once again be celebrated and honored Monday in events around the nation.

The U.S. is marking Martin Luther King Day, a federal holiday. But in Alabama and Mississippi, it's also Robert E. Lee Day, in honor of the Confederate general.