Before he was assassinated, MLK had a really radical idea.

Just months before he was assassinated, Martin Luther King Jr. was organizing support for the "Poor People's Campaign," aimed at supplementing the Civil Rights Act of 1964 with a full measure of economic and human rights for America's poor.

Watch MLK unfurl some important history at 1:22, and take a minute to sit back and wonder what might have happened if he'd been successful.