Dead at the age of 74.

If you read only one thing about #MuhammadAli, read what he wrote in his memoir about how he wanted to be remembered pic.twitter.com/J1EdeX2lLC
— Chris Donovan (@chrisdonovan) June 4, 2016

You must read Dave Zirin's obituary to get a sense of the impact he had on the world:

 When Dr. Martin Luther King came out against the war in Vietnam in 1967, he was criticized by the mainstream press and his own advisors who told him to not focus on “foreign” policy. But Dr. King forged forward, and to justify his new stand, said publicly, “Like Muhammad Ali puts it, we are all—black and brown and poor—victims of the same system of oppression.”

When Nelson Mandela was imprisoned on Robben Island, he said that Muhammad Ali made him feel like the walls were not there.