Question:
Cardiff Rugby Football Club (Welsh: Clwb Rygbi Caerdydd) is a rugby union football club based in Cardiff, the capital city of Wales. The club was founded in 1876 and played their first few matches at Sophia Gardens, but soon relocated to Cardiff Arms Park where they have been based ever since. They built a reputation as one of the great clubs in world rugby largely through a series of wins against international touring sides.
In 1990, the unofficial Welsh championship was replaced by a league structure involving promotion and relegation. Cardiff competed in top flight but could only manage a fourth-place finish in 1990-91, and exited the Cup at the quarter-final stage. The season did involve some highlights however, such as beating league runners-up and Cup champions Llanelli 43-0 at the Arms Park and beating league champions Neath 18-4 away in the last game of the season. 1991-92 was possibly the club's worst-ever season, beset with disagreements between coach Alan Phillips and manager John Scott. Cardiff crashed out of the Cup before the quarter-final stage and lost at home to Maesteg and Newbridge in the league. Their final league finish was ninth, which would have led to their relegation but the WRU decided mid-season to switch to a 12-team Premiership, therefore saving Cardiff and Maesteg from relegation. Both Scott and Phillips resigned following the season. Australian Alex Evans took over at Cardiff as coach for the 1992-93 season, bringing in former Arms Park legend Terry Holmes and famous ex-Pontypool front-row member Charlie Faulkner as assistants, and helped a turnaround in the club's fortunes, winning their first seven matches of the season and 20 of their first 22 to top the league in the new year. This run came to an end on 23 January; they were knocked out of the Schweppes Cup by St Peter's, who were fourth from bottom of Division Four. The Blue and Blacks only lost four league games all season though, but were unlucky to be competing against Llanelli in the league, who won the double and were considered the best club team in the UK after beating Australia 13-9. In 1993-94 they slid back to fourth in the league but won the SWALEC Cup (renamed from Schweppes Cup for sponsorship reasons) by beating Llanelli, who'd won the tournament for the last three years running. The score in the final was 15-8, with tries from Mike Rayer and club captain centre Mike Hall and kicks from fly-half Adrian Davies. In 1994-95 Cardiff won the final league title of the amateur era in Wales, as well as reaching the semi-finals of the Cup before going down 16-9 to Swansea.
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What is the rugby league?

Answer:
In 1990, the unofficial Welsh championship was replaced by a league structure involving promotion and relegation.

Answer the question at the end by quoting:

Muhammad Ali (; born Cassius Marcellus Clay Jr.; January 17, 1942 - June 3, 2016) was an American professional boxer and activist. He is widely regarded as one of the most significant and celebrated sports figures of the 20th century. From early in his career, Ali was known as an inspiring, controversial, and polarizing figure both inside and outside the ring. Cassius Clay was born and raised in Louisville, Kentucky, and began training as an amateur boxer when he was 12 years old.
Cassius Marcellus Clay Jr. () was born on January 17, 1942, in Louisville, Kentucky. He had a sister and four brothers. He was named for his father, Cassius Marcellus Clay Sr. (1912-1990), who himself was named in honor of the 19th-century Republican politician and staunch abolitionist, Cassius Marcellus Clay, also from the state of Kentucky. Clay's father's paternal grandparents were John Clay and Sallie Anne Clay; Clay's sister Eva claimed that Sallie was a native of Madagascar. He was a descendant of slaves of the antebellum South, and was predominantly of African descent, with smaller amounts of Irish and English heritage. His father painted billboards and signs, and his mother, Odessa O'Grady Clay (1917-1994), was a domestic helper. Although Cassius Sr. was a Methodist, he allowed Odessa to bring up both Cassius Jr. and his younger brother Rudolph "Rudy" Clay (later renamed Rahman Ali) as Baptists. Cassius Jr. attended Central High School in Louisville. Clay grew up amid racial segregation. His mother recalled one occasion when he was denied a drink of water at a store--"They wouldn't give him one because of his color. That really affected him." He was also affected by the 1955 murder of Emmett Till, which led to young Clay and a friend's taking out their frustration by vandalizing a local railyard. Clay was first directed toward boxing by Louisville police officer and boxing coach Joe E. Martin, who encountered the 12-year-old fuming over a thief's having taken his bicycle. He told the officer he was going to "whup" the thief. The officer told Clay he had better learn how to box first. Initially, Clay did not take up Martin's offer, but after seeing amateur boxers on a local television boxing program called Tomorrow's Champions, Clay was interested in the prospect of fighting. He then began to work with trainer Fred Stoner, whom he credits with giving him the "real training", eventually moulding "my style, my stamina and my system". For the last four years of Clay's amateur career he was trained by boxing cutman Chuck Bodak. Clay made his amateur boxing debut in 1954 against local amateur boxer Ronnie O'Keefe. He won by split decision. He went on to win six Kentucky Golden Gloves titles, two national Golden Gloves titles, an Amateur Athletic Union national title, and the Light Heavyweight gold medal in the 1960 Summer Olympics in Rome. Clay's amateur record was 100 wins with five losses. Ali said in his 1975 autobiography that shortly after his return from the Rome Olympics, he threw his gold medal into the Ohio River after he and a friend were refused service at a "whites-only" restaurant and fought with a white gang. The story was later disputed, and several of Ali's friends, including Bundini Brown and photographer Howard Bingham, denied it. Brown told Sports Illustrated writer Mark Kram, "Honkies sure bought into that one!" Thomas Hauser's biography of Ali stated that Ali was refused service at the diner but that he lost his medal a year after he won it. Ali received a replacement medal at a basketball intermission during the 1996 Olympics in Atlanta, where he lit the torch to start the games.

How did he get into boxing?
Clay was first directed toward boxing by Louisville police officer and boxing coach Joe E. Martin,