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1960: A Few Wins At age 18, Ali had two national Golden Gloves titles, two Amateur Athletic Union national titles, and 100 wins over eight losses. His plan was to graduate high school and continue boxing. Bettmann - Getty Images

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1960: Training for the Olympics He chose to train after graduating high school for the 1960 Olympics in Rome. And it turns out, focusing on the sport and honing his skills paid off. Bettmann - Getty Images

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1960: He Won the Gold Medal In September 1960, at the Summer Olympics in Rome, Ali won the gold medal. Here he is standing with fellow gold medal winners, Eddie Crook and Skeeter McClure. FPG - Getty Images

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1960: He Won Again Ali made his professional boxing debut on October 29, 1960, in a six-round decisionand he walked away victorious. He had such quick, aggressive feet that he became known as "Louisville Lip." Bettmann - Getty Images

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1963: A Fight Against Doug Jones Here's Ali fighting Doug Jones at Madison Square Garden in New York City in March 13, 1963. Around this time, he was starting to gain more recognition and wins. The Stanley Weston Archive - Getty Images

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1963: Fame Begins Here he is backstage with friend Stevie Wonder at the Apollo Theatre in 1963. This was right before Wonder sang "Little." Michael Ochs Archives - Getty Images

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1964: Ali Marries Sonji Roi Ali married his first wife, Sonji Roi, in 1964. However, they divorced just one year later when she refused to adhere to the Nation of Islam attire and customs, as Ali wanted. Bettmann - Getty Images

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1964: He Fights Sonny Liston After winning 19 fights and 15 knockouts, Ali received his first title shot on February 25, 1964. He came in an underdog, but it didn't stay that way. After beating reigning heavyweight champion Sonny Liston, Ali became a heavyweight boxing champion. John D. Kisch/Separate Cinema Archive - Getty Images

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1964: A Self-Portrait After Victory Here's a photo of Ali after he won the match against Liston. This marked the moment he became the new champ. Focus On Sport - Getty Images

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1964: Holding His Belt Here he is holding his new heavyweight belt. Marka - Getty Images

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1964: He Converts to Isalm Ali converted to Islam on March 6, 1964 and officially changed his name to Muhammad Ali. UniversalImagesGroup - Getty Images

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1966: Practicing His Punch By 1966, Ali was known as "The Greatest." The nickname came to be in the seventh round of his fight with Liston, when he celebrated by yelling, "I am the greatest!" From there it stuck. Bettmann - Getty Images

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1967: He Protests Vietnam Ali was called to the U.S. Armed Forces on April 28, 1967, but refused to serve due to religious principles. Ali was arrested, and the New York State Athletic Commission suspended his boxing license and took away his heavyweight belt. Mirrorpix - Getty Images

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1867: A Prison Sentence Convicted of a crime of draft evasion, Ali was sentenced to a maximum of five years in prison and received a $10,000 fine in 1967. He paid a bond and appealed the conviction, which was overturned in 1971. Some fans supported him, but he lost some during this time as well. Robert Abbott Sengstacke - Getty Images

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1970: He Returns to the Ring State Senator Leroy R. Johnson granted Ali a license to box while his case was still in appeal, so on August 11, 1970 he returned to the ring. He fought Jerry Quarry in Atlanta, Georgia on October 26 and won. The Ring Magazine - Getty Images

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1970: He Fights for His Title After getting into a screaming match at a book signing with reigning champion, Joe Frazier, over who was the ultimate fighter, the two decided to duel it out in the ring. Bettmann - Getty Images

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1971: A Battle Against Joe Frazier On March 8, 1971, Ali fought to regain his heavyweight crown against reigning champ Joe Frazier in the "Fight of the Century." Frazier got Ali with a hard left hook in the final round, and Ali had his first professional loss. Bettmann - Getty Images

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1973: Another Defeat Ali won his next 10 fights, but lost again to Ken Norton at the San Diego Sports Arena. He won the rematch six months later in a split decision call. The Ring Magazine - Getty Images

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1974: Ali Beats George Foreman In 1974, Ali challenged 25-year-old champion, George Foreman. The October 30, 1974 fight in Kinshasa, Zaire, was named the "Rumble in the Jungle." Ali used a "rope-a-dope" strategy, leaning on the ring ropes and taking in blows from Foreman while waiting for his opponent to get exhausted. It worked and Ali won with an eighth-round knockout, finally getting the title back that he lost seven years before. PA Images - Getty Images

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1975: An Epic Rematch Ali challenged his biggest opponent at the time, Frazier, to a rematch. "Thrilla in Manila" took place on October 1, 1975. Frazier wasn't able to answer the bell for the final round, so Ali won in the end. Bettmann - Getty Images

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1977: He Married Third Wife Veronica Porche While Ali was still with his second wife, Belinda Boyd (who he married in 1967 and had four kids with) he met Veronica Porche. Ali and Porche got married in 1977, a year after his divorce from Boyd, and had two children. Ron Galella - Getty Images

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1978: He Loses to Leon Spinks On February 15, 1978, Ali lost his title to Leon Spinks in a 15-round split decision call. In a rematch seven months later, he defeated Spinks in a unanimous 15-round decision, earning back the title and becoming the first person to win the world heavyweight boxing title three times. Bettmann - Getty Images

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1979: He Retires at 37 When in Dublin for a fight on June 26, 1979, Ali announced his retirement as world heavyweight boxing champion. PA Images - Getty Images

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1979: Supporting a Good Cause Ali became actively involved in supporting the Special Olympics. Here he is at the 1979 Special Olympics at SUNY Brockport Campus in Brockport, New York. Ron Galella - Getty Images

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1980: He Fights Larry Holmes On May 2, 1980, Ali attempted to reclaim his fourth title, although retired, by fighting Larry Holmes. Unfortunately, he didn't win. Mirrorpix - Getty Images

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1981: He Fights Trevor Berbick On December 11, 1981, Ali took on another opponent: Trevor Berbick at the Queen Elizabeth Sports Centre in Nassau, Bahamas. He lost and retired for good, with a record of 56 wins, 5 losses, and 37 knockouts total. Focus On Sport - Getty Images

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1984: Hospitalized for Parkinson's Disease Ali met with reporters outside the hospital in this shot along with his friend, the Reverend Jesse Jackson, after being hospitalized because of Parkinson's syndrome on September 20, 1984. Bettmann - Getty Images

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1986: He Marries His Fourth Wife After his third divorce, Ali married Lonnie Williams, who he'd known since she 6 and he was 21. They had a son and were together until he died. Boston Globe - Getty Images

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1990: He Meets With Saddam Hussein In 1990, Ali met with Iraqi leader Saddam Hussein to discuss the release of American hostages. This is just one example of how he became more actively involved after his retirement. Alain MINGAM - Getty Images

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1990: The Hall of Fame Joe Walcott and Ali pose together during the 1990 Boxing Hall of Fame induction ceremony. He became a member on June 9, 1990. The Ring Magazine - Getty Images

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1996: The Olympic Flame On July 19, 1996, Ali had the honor of lighting the flame for the 1996 Summer Olympics in Atlanta. Michael Cooper - Getty Images

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1998: Moroccan King Hassan II Salutes Ali At the Royal Palace in Rabat on January 15, 1998, Ali is saluted by the King. He was visiting Morocco for four days, per the King's invitation, to engage in royal ceremonies for the fasting month of Ramadan. ABDELHAK SENNA - Getty Images

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2000: He Continues Charitable Efforts in Mexico Ali traveled to Mexico to give back to local communities in 2000. Here he is giving toys to kids in Ciudad Jurez. He focused on missionary work and food distribution through the Global Village Market. Joe Raedle - Getty Images

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2002: A United Nations Messenger of Peace On November 17, 2002, Ali served in Afghanistan as a United Nations Messenger of Peace. Here he was greeted by World Food Program (WFP) country director Susanna Rico at the Kabul airport. Getty Images - Getty Images

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2004: At "Celebrity Fight Night X" After getting Parkinson's, Ali dedicated much of his life to raising awareness and profits. Here he is at a charity event for the Muhammad Ali Parkinson Research Center. Carlo Allegri - Getty Images

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2005: The Muhammad Ali Center Here he is next to his wife Lonnie at the launch of the Muhammad Ali Center in Louisville, Kentucky. The $75 million dollar center has exhibits that pay homage to his life and career, and is a nonprofit museum that focuses on peace and social activism. JEFF HAYNES - Getty Images

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2005: The Presidential Medal of Freedom Ali received the Medal of Freedom from President George W. Bush during a ceremony in the East Room of the White House on November 9, 2005. There were 14 medals given out in total. Mark Wilson - Getty Images

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2009: On the Inaugural Stage Ali sat on the inaugural stage when Barack Obama became the 44th President of the United States of America on January 20, 2009. Chip Somodevilla - Getty Images

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2009: He Accepts the President's Award Ali and his wife Lonnie accept the President's Award during the 40th NAACP Image Awards, which took place at the Shrine Auditorium on February 12, 2009 in Los Angeles, California. Vince Bucci - Getty Images

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2013: The Coin Toss for the Sugar Bowl On behalf of the Louisville Cardinals, Ali did the coin toss before the Allstate Sugar Bowl. In the next few years, Ali continued to suffer from Parkinson's and his health slowly started to decline. He passed away on June 3, 2016, in Phoenix, Arizona after being hospitalized for a respiratory issue. Pool - Getty Images