After a 32-year battle with Parkinson's disease, Muhammad Ali has passed away at the age of 74. The three-time World Heavyweight Champion boxer died this evening," Bob Gunnell, a family spokesman, told NBC News that
Ali had suffered for three decades from Parkinson's Disease, a progressive neurological condition that slowly robbed him of both his legendary verbal grace and his physical dexterity. A funeral service is planned in his hometown of Louisville, Kentucky.

Even as his health declined, Ali did not shy from politics or controversy, releasing a statement in December criticizing Republican presidential candidate Donald Trump's proposal to ban Muslims from entering the United States. "We as Muslims have to stand up to those who use Islam to advance their own personal agenda," he said.

The remark bookended the life of a man who burst into the national consciousness in the early 1960s, when as a young heavyweight champion he converted to Islam and refused to serve in the Vietnam War, and became an emblem of strength, eloquence, conscience and courage. Ali was an anti-establishment showman who transcended borders and barriers, race and religion. His fights against other men became spectacles, but he embodied much greater battles

Born Cassius Clay on Jan. 17, 1942 in Louisville, Kentucky, to middle-class parents, Ali started boxing when he was 12, winning Golden Gloves titles before heading to the 1960 Olympics in Rome, where he won a gold medal as a light heavyweight.

He turned professional shortly afterward, supported at first by Louisville business owners who guaranteed him an unprecedented 50-50 split in earnings. His knack for talking up his own talents — often in verse — earned him the dismissive nickname "the Louisville Lip," but he backed up his talk with action, relocating to Miami to train with the legendary trainer Angelo Dundee and build a case for getting a shot at the heavyweight title

As his profile rose, Ali acted out against American racism. After he was refused services at a soda fountain counter, he said, he threw his Olympic gold medal into a river.

Recoiling from the sport's tightly knit community of agents and promoters, Ali found guidance instead from the Nation of Islam, an American Muslim sect that advocated racial separation and rejected the pacifism of most civil rights activism. Inspired by Malcolm X, one of the group's leaders, he converted in 1963. But he kept his new faith a secret until the crown was safely in hand

from vanguard.com