Background: Frederick Carlton "Carl" Lewis (born July 1, 1961) is an American former track and field athlete who won nine Olympic gold medals, one Olympic silver medal, and 10 World Championships medals, including eight gold. His career spanned from 1979 to 1996, when he last won an Olympic event. He is one of only three Olympic athletes who won a gold medal in the same individual event in four consecutive Olympic Games. Lewis was a dominant sprinter and long jumper who topped the world rankings in the 100 m, 200 m and long jump events frequently from 1981 to the early 1990s.
Context: Frederick Carlton Lewis was born in Birmingham, Alabama, on July 1, 1961, the son of William Lewis (1927-1987) and Evelyn nee Lawler Lewis. His mother was a hurdler on the 1951 Pan-Am team. His parents ran a local athletics club that provided a crucial influence on both Carl and his sister Carol. She became an elite long jumper, finishing 9th at the 1984 Olympics and taking bronze at the 1983 World Championships. Lewis was initially coached by his father, who also coached other local athletes to elite status. At age 13, Lewis began competing in the long jump, and he emerged as a promising athlete while coached by Andy Dudek and Paul Minore at Willingboro High School in his hometown of Willingboro Township, New Jersey. He achieved the ranking of fourth on the all-time World Junior list of long jumpers. Many colleges tried to recruit Lewis, and he chose to enroll at the University of Houston where Tom Tellez was coach. Tellez would thereafter remain Lewis' coach for his entire career. Days after graduating from high school in 1979, Lewis broke the high school long jump record with a leap of 8.13 m (26 ft 8 in). By the end of 1979, Lewis was ranked fifth in the world for the long jump, according to Track and Field News. An old knee injury had flared up again at the end of the high school year, and this might have had consequences on his fitness. Lewis worked with Tellez and adapted his technique so that he was able to jump without pain, and he went on to win the 1980 National Collegiate Athletic Association (NCAA) title with a wind-assisted jump of 8.35 m (27 ft 4 1/2 in). Though his focus was on the long jump, he was now starting to emerge as a talent in the sprints. Comparisons were beginning to be made with Jesse Owens, who dominated sprint and long jump events in the 1930s. Lewis qualified for the American team for the 1980 Olympics in the long jump and as a member of the 4 x 100 m relay team. The Olympic boycott precluded Lewis from competing in Moscow; he instead participated in the Liberty Bell Classic in July 1980, which was an alternate meet for boycotting nations. He jumped 7.77 m (25 ft 5 3/4 in) for a bronze medal, and the American 4 x 100 m relay team won gold with a time of 38.61 s. Lewis received one of 461 Congressional Gold Medals created especially for the athletes precluded from competing in the 1980 Olympics. At year's end, Lewis was ranked 6th in the world in the long jump and 7th in the 100 m.
Question: How long was he a competitive athlete?
Answer:

Background: Groening was born on February 15, 1954 in Portland, Oregon, the middle of five children (older brother Mark and sister Patty were born in 1950 and 1952, while the younger sisters Lisa and Maggie in 1956 and 1958, respectively). His Norwegian American mother, Margaret Ruth (nee Wiggum; March 23, 1919 - April 22, 2013), was once a teacher, and his German Canadian father, Homer Philip Groening (December 30, 1919 - March 15, 1996), was a filmmaker, advertiser, writer and cartoonist. Homer, born in Main Centre, Saskatchewan, Canada, grew up in a Mennonite, Plautdietsch-speaking family.
Context: After spending a few years researching science fiction, Groening got together with Simpsons writer/producer David X. Cohen (known as David S. Cohen at the time) in 1997 and developed Futurama, an animated series about life in the year 3000. By the time they pitched the series to Fox in April 1998, Groening and Cohen had composed many characters and storylines; Groening claimed they had gone "overboard" in their discussions. Groening described trying to get the show on the air as "by far the worst experience of [his] grown-up life." The show premiered on March 28, 1999. Groening's writing credits for the show are for the premiere episode, "Space Pilot 3000" (co-written with Cohen), "Rebirth" (story) and "In-A-Gadda-Da-Leela" (story). After four years on the air, the show was canceled by Fox. In a situation similar to Family Guy, however, strong DVD sales and very stable ratings on Adult Swim brought Futurama back to life. When Comedy Central began negotiating for the rights to air Futurama reruns, Fox suggested that there was a possibility of also creating new episodes. When Comedy Central committed to sixteen new episodes, it was decided that four straight-to-DVD films - Bender's Big Score (2007), The Beast with a Billion Backs (2008), Bender's Game (2008) and Into the Wild Green Yonder (2009) - would be produced. Since no new Futurama projects were in production, the movie Into the Wild Green Yonder was designed to stand as the Futurama series finale. However, Groening had expressed a desire to continue the Futurama franchise in some form, including as a theatrical film. In an interview with CNN, Groening said that "we have a great relationship with Comedy Central and we would love to do more episodes for them, but I don't know... We're having discussions and there is some enthusiasm but I can't tell if it's just me". Comedy Central commissioned an additional 26 new episodes, and began airing them in 2010. The show continued in to 2013, before Comedy Central announced in April 2013 that they would not be renewing it beyond its seventh season. The final episode aired on September 4, 2013.
Question: How did the show Futurama end?
Answer:
The final episode aired on September 4, 2013.