Boxing legend Muhammad Ali would have been 76 today.
Check out the photo gallery below with some of his famous moments:
Muhammad Ali
ShareAugust 1966: US boxer Muhammad Ali in training for a match against Brian London. (Photo by R McPhedran/Getty Images)
Ali’s Girls
Share19th December 1978: Heavyweight boxer Muhammad Ali with his daughters Laila (9 months) and Hanna (2 years 5 months) at Grosvenor House. (Photo by Frank Tewkesbury/Evening Standard/Getty Images)
Bugner Vs Ali
Share5th July 1975: Muhammad Ali, formerly known as Cassius Marcellus Clay, about to punch Hungarian-born British boxer Joe Bugner, in their title fight at the Merdeka Stadium in Kuala Lumpur. Ali won the fight, keeping his World Heavyweight title. (Photo by Central Press/Getty Images)
Cassius Clay
Share27 Feb 1964: Cassius Clay (Muhammad Ali) flies around the ring after beating Sonny Liston in the seventh round of the World Heavyweight Title bout in Miami Beach, Florida, USA. It was during these scenes that Clay claimed, "I am the Greatest" and "I shook up the World". Mandatory Credit: Allsport Hulton/Archive
2010 A Funny Thing Happened On The Way To Cure Parkinson’s – Show
ShareNEW YORK - NOVEMBER 13: (EXCLUSIVE ACCESS - PREMIUM RATES APPLY) Muhammad Ali onstage during the Michael J. Fox Foundation's 2010 Benefit "A Funny Thing Happened on the Way to Cure Parkinson's" at The Waldorf=Astoria on November 13, 2010 in New York City. (Photo by Andrew H. Walker/Getty Images for the Michael J. Fox Foundation for Parkinson's Research)
Clay Predicts Five
Share27th May 1963: Supremely confident American boxer Cassius Clay holds up five fingers in a prediction of how many rounds it will take him to knock out British boxer Henry Cooper. (Photo by Kent Gavin/Keystone/Getty Images)
Clay Liston Title Fight
ShareFEBRUARY 25, 1964 - MIAMI: American boxer Cassius Clay (now Muhammad Ali), on his way to defeating Sonny Liston during their world heavyweight title fight at Miami Beach, Florida. (Photo by Harry Benson/Getty Images)
Keep Memory Alive’s 16th Annual “Power Of Love Gala” Celebrates Muhammad Ali’s 70th Birthday – Inside
ShareLAS VEGAS, NV - FEBRUARY 18: (EXCLUSIVE COVERAGE) Boxing legend Muhammad Ali (L) and wife Lonnie Ali appear onstage during the Keep Memory Alive foundation's "Power of Love Gala" celebrating Muhammad Ali's 70th birthday at the MGM Grand Garden Arena February 18, 2012 in Las Vegas, Nevada. The event benefits the Cleveland Clinic Lou Ruvo Center for Brain Health and the Muhammad Ali Center. (Photo by Ethan Miller/Getty Images for Keep Memory Alive)
Muhammad Ali Appeals To Iran In Effort To Free The Two Detained US Hikers
ShareWASHINGTON, DC - MAY 24: World Heavyweight Boxing Champion Muhammad Ali attends a news conference at the National Press Club on May 24, 2011 in Washington, DC. Ali and other prominent American Muslims and clergy appealed to Iran's Supreme Leader for the release Shane Bauer and Josh Fattal, the two U.S. hikers detained in Iran since July 31, 2009. (Photo by Win McNamee/Getty Images)
Weighing Clay
Share1963: American boxer Cassius Clay weighs in before his world heavyweight title fight against British boxer Henry Cooper. (Photo by S. Higgins/Express/Getty Images)
The Greatest
Share17th May 1966: World heavyweight boxing champion Muhammad Ali meets 8 month old Maria Morin in a training session at the Territorial Army Gymnasium at White City, London. Ali is in training for his fight against the British champion Henry Cooper at Arsenal's Highbury Stadium, London on May 21st. (Photo by R. McPhedran/Express/Getty Images)
Miami Fight
Share25th February 1964: American boxer Cassius Clay (left), later Muhammad Ali, in action against Sonny Liston during their heavyweight title fight at Miami Beach, Florida. Clay won the contest, becoming world champion, when Liston failed to come out at the start of the seventh round. (Photo by Harry Benson/Express/Getty Images)
Ali’s Girls
Share19th December 1978: Heavyweight boxer Muhammad Ali with his daughters Laila (9 months) and Hanna (2years 5 months) at Grosvenor House. (Photo by Frank Tewkesbury/Evening Standard/Getty Images)
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ShareAli V Liston
Share25th February 1964: US boxers Cassius Clay (Muhammad Ali) and Sonny Liston (right) during their world heavyweight title fight at Miami Beach, Florida, which Ali went on to win. (Photo by Harry Benson/Express/Getty Images)
The Greatest
ShareWorld heavyweight boxing champion Muhammad Ali, has his hands bandaged by his manager Angelo Dundee (1921 - 2012, right) before the day's training session at the Territorial Army Gymnasium at White City, London, 16th May 1966. On the left is Jack 'George' Achilles, head chef of Isow’s, a restaurant in Brewer Street, Soho, favoured by celebrities including Ali, and his entourage. Ali is in training for his fight against the British champion Henry Cooper at Arsenal's Highbury Stadium, London on May 21st. (Photo by R. McPhedran/Daily Express/Hulton Archive/Getty Images)
Ali Liston Miami
Share25th February 1964: American boxer Cassius Clay (left), later Muhammad Ali, in action against Sonny Liston during their heavyweight title fight at Miami Beach, Florida. Clay won the contest, becoming world champion, when Liston failed to come out at the start of the seventh round. (Photo by Harry Benson/Express/Getty Images)
Celebrity Fight Night XIX – Red Carpet
SharePHOENIX, AZ - MARCH 23: Singer Jennifer Lopez and boxer Muhammad Ali attends Muhammad Ali's Celebrity Fight Night XIX at JW Marriott Desert Ridge Resort & Spa on March 23, 2013 in Phoenix, Arizona. (Photo by Michael Buckner/Getty Images for Fight Night)
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ShareMuhammad Ali
Share19 Apr 1991: Muhammad Ali looks on during a bout between Evander Holyfield and George Foreman at Caesar''s Palace in Las Vegas, Nevada. Mandatory Credit: Barry Jarvinan /Allsport
Ali Declaims
ShareNovember 1974: World Heavyweight Champion boxer, Muhammad Ali addressing an audience at the New Victoria Theatre in London. (Photo by Tim Graham/Evening Standard/Getty Images)
Ali Speaks
Share2nd December 1974: World Heavyweight Champion boxer Muhammad Ali addressing a Nation of Islam meeting at the New Victoria Theatre in London. (Photo by Tim Graham/Evening Standard/Getty Images)
Cooper And Clay
ShareBritish Heavyweight champion Henry Cooper (1934 - 2011, left) with American boxer Cassius Clay (later Muhammad Ali) after their non-title fight at Wembley Stadium, London, 18th June 1963. Clay won the match by a technical knockout after Cooper sustained a cut under his left eye. (Photo by Central Press/Hulton Archive/Getty Images)
MUHAMMAD ALI
Share1972: MUHAMMAD ALI IN ACTION AGAINST AL ''BLUE'' LEWIS IN DUBLIN, IRELAND. Mandatory Credit: Allsport UK/ALLSPORT
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Share19 Jul 1996: Muhammad Ali holds the torch before lighting the Olympic Flame during the Opening Ceremony of the 1996 Centennial Olympic Games in Atlanta, Georgia. Mandatory Credit: Michael Cooper /