Question: When was the most recent Super Bowl Willie Ellison's team played in?

full_context: Document 1: Kansas City Chiefs: The Chiefs have won three AFL championships, in 1962, 1966, and 1969 and became the second AFL team (after the New York Jets) to defeat an NFL team in an AFL -- NFL World Championship Game, when they defeated the Minnesota Vikings in Super Bowl IV. The team's victory on January 11, 1970, remains the club's last championship game victory and appearance to date, and occurred in the final such competition prior to the leagues' merger coming into full effect. The Chiefs were also the second team, after the Green Bay Packers, to appear in more than one Super Bowl (and the first AFL team to do so) and the first to appear in the championship game in two different decades.
Document 2: Willie Ellison: William Henry Ellison (November 1, 1945 – March 11, 2019) was an American football running back who played eight seasons in the National Football League for the Los Angeles Rams and the Kansas City Chiefs. Sporting #33, he spent his first four seasons in the NFL as backup behind Larry Smith, before taking over as starting tailback in 1971. On December 5, 1971 against the New Orleans Saints he rushed 26 times for 247 yards thus breaking Cookie Gilchrist's pro football record of 243 yards. The NFL record at the time was held by Jim Brown, who ran 237 against the Los Angeles Rams in 1957. Ellison was subsequently named NFL Offensive Player of the Week by the "Associated Press". Ellison went on to the Pro Bowl after the 1971 NFL season. He played college football at Texas Southern. He lived in Pearland, TX working as a substitute teacher in the Pearland ISD area.
Document 3: History of the National Football League championship: From 1966 -- 1969 prior to the merger in 1970, the NFL and the AFL agreed to hold an ultimate championship game, first called the AFL - NFL World Championship Game and later renamed the Super Bowl after 1968. Following the merger in 1970, the Super Bowl name continued as the game to determine the NFL champion. The most important factor of the merger was that all ten AFL teams joined the NFL in 1970 and every AFL championship game and record is included in NFL record books. The old NFL Championship Game became the NFC Championship Game, while the old AFL Championship Game became the AFC Championship Game. The NFL lists the old AFL / NFL championship games with ``new ''AFC / NFC championship games in its record books. The Green Bay Packers have won the most championships with 13 total (9 NFL championships pre-merger, four (4) Super Bowl championships). The Packers are also the only team to win three consecutive championships, having done so twice (1929 -- 1931, 1965 -- 1967). The Chicago Bears have won the second most overall championships with nine (9) (eight NFL championships, one Super Bowl championship).
Document 4: 1969 Kansas City Chiefs season: The 1969 Kansas City Chiefs season was the team's 10th, their 7th in Kansas City, and also their final season in the American Football League. It resulted in an 11 -- 3 record and a 23 -- 7 victory in Super Bowl IV over the NFL's heavily favored Minnesota Vikings. The team beat their rivals, the Oakland Raiders in the final AFL Championship Game, claiming their third AFL Championship in franchise history. The Chiefs were coached by Hank Stram, led by quarterback Len Dawson and a powerful defense led by Bobby Bell, Willie ``Contact ''Lanier, Buck Buchanan and Curley Culp. The Chiefs' defense became the fourth defense in the history of pro football to lead its league in fewest rushing yards, fewest passing yards and fewest total yards. The Chiefs were the second AFL team to win the Super Bowl and last AFL team to do so before the AFL - NFL Merger in the following season.
Document 5: 2,000-yard club: The 2,000 - yard club is a group of seven National Football League (NFL) running backs that have rushed for 2,000 or more yards in a season. These seven rushing seasons rank as the highest single - season rushing totals in NFL history, and reaching the 2,000 - yard mark is considered a significant achievement for running backs. No running back has yet achieved this feat twice. The first 2,000 - yard season was recorded in 1973 by Buffalo Bills running back O.J. Simpson. He is the only player to have surpassed 2,000 yards in a 14 - game season, as all others occurred in 16 - game seasons; he finished the season with 2,003 rushing yards, averaging six yards per carry and an NFL - record 143.1 rushing yards per game. Los Angeles Rams running back Eric Dickerson, who had broken the single - season rookie rushing record in 1983, recorded the second 2,000 - yard season in 1984. Dickerson rushed for 2,105 yards, the current NFL rushing record, and averaged 131.6 rushing yards per game.
Document 6: Wee Willie Smith: The 6'5" Smith was one of the first great African American basketball players. He played for several semi-professional leagues in the Cleveland, Ohio area before being signed by the New York Renaissance, an all-black professional team, in 1932. From 1932 to 1936, Smith and his six teammates won over 400 games, including an 88-game winning streak from January 1, 1933 to March 27, 1933. The entire 1932–33 Renaissance team was collectively inducted into the Naismith Memorial Basketball Hall of Fame in 1963. Smith played for several other professional teams, including the Cleveland Chase Brassmen of the National Basketball League. He was one of the few black players in the history of the NBL. After basketball, he worked as a custodian in the Cleveland Public Schools and operated a beverage shop. He was inducted into the Harlem Hall of Fame and the Greater Cleveland Sports Hall of Fame in 1977.
Document 7: Curtis Bledsoe: Curtis Kemp Bledsoe (born March 19, 1957 in Odessa, Texas) is a former professional American football player who played fullback, halfback, and running back. He played in the National Football League for the Kansas City Chiefs in 1981 and 1982. He later played for the Arizona Wranglers, Washington Federals and Orlando Renegades of the USFL. Bledsoe played college football for
Document 8: List of Super Bowl champions: Before the 1970 merger between the American Football League (AFL) and the National Football League (NFL), the two leagues met in four such contests. The first two were marketed as the ``AFL -- NFL World Championship Game '', but were also casually referred to as`` the Super Bowl game'' during the television broadcast. Super Bowl III in January 1969 was the first such game that carried the ``Super Bowl ''moniker in official marketing, the names`` Super Bowl I'' and ``Super Bowl II ''were retroactively applied to the first two games. The NFC / NFL leads in Super Bowl wins with 26, while the AFC / AFL has won 25. Nineteen different franchises, including teams that relocated to another city, have won the Super Bowl.
Document 9: List of NCAA major college football yearly rushing leaders: Since 1937, the single - season rushing record has been broken eight times, by Rudy Mobley in 1942 (1,281 yards), Fred Wendt in 1948 (1,570 yards), O.J. Simpson in 1968 (1,880 yards), Ed Marinaro in 1971 (1,881 yards), Ricky Bell in 1975 (1,957 yards), Tony Dorsett in 1976 (2,150 yards), Marcus Allen in 1981 (2,427 yards), and Barry Sanders in 1988 (2,628 yards).
Document 10: Barry Sanders: Barry Sanders (born July 16, 1968) is a former American football running back. He played professionally for the Detroit Lions of the National Football League (NFL). A Pro Bowl invitee in each of his ten NFL seasons and two-time NFL Offensive Player of the Year, Sanders led the league in rushing yards four times and established himself as one of the most elusive runners in pro football with his quickness and agility. In 2007, he was ranked by NFL Network's "NFL Top 10" series as the most elusive runner in NFL history, and also topped its list of greatest players never to play in a Super Bowl. He is often regarded as one of the greatest running backs in NFL history.
Document 11: Super Bowl IV: Super Bowl IV, the fourth and final AFL - NFL World Championship Game in professional American football, was played on January 11, 1970, at Tulane Stadium in New Orleans, Louisiana. The American Football League (AFL) champion Kansas City Chiefs defeated the National Football League (NFL) champion Minnesota Vikings by the score of 23 -- 7. This victory by the AFL squared the Super Bowl series with the NFL at two games apiece. The two leagues merged into one after the season.
Document 12: Kansas City Chiefs: Kansas City Chiefs Current season Established August 14, 1959; 58 years ago (August 14, 1959) First season: 1960 Play in and headquartered in Arrowhead Stadium Kansas City, Missouri Logo Wordmark League / conference affiliations American Football League (1960 -- 1969) Western Division (1960 -- 1969) National Football League (1970 -- present) American Football Conference (1970 -- present) AFC West (1970 -- present) Current uniform Team colors Red, Gold, White Mascot Warpaint (1963 -- 1988, 2009 -- present) K.C. Wolf (1989 -- present) Personnel Owner (s) Hunt family Chairman Clark Hunt CEO Clark Hunt President Mark Donovan General manager Brett Veach Head coach Andy Reid Team history Dallas Texans (1960 -- 1962) Kansas City Chiefs (1963 -- present) Team nicknames Redwood Forest (Defense, 1969 -- 1971) Championships League championships (2) † AFL Championships (pre-1970 AFL -- NFL merger) (3) 1962, 1966, 1969 AFL -- NFL Super Bowl championships (1) 1969 (IV) Conference championships (0) Division championships (10) AFL West: 1962, 1966 AFC West: 1971, 1993, 1995, 1997, 2003, 2010, 2016, 2017 † - Does not include the AFL or NFL championships won during the same seasons as the AFL - NFL Super Bowl championships prior to the 1970 AFL - NFL Merger Playoff appearances (20) AFL: 1962, 1966, 1968, 1969 NFL: 1971, 1986, 1990, 1991, 1992, 1993, 1994, 1995, 1997, 2003, 2006, 2010, 2013, 2015, 2016, 2017 Home fields Cotton Bowl (1960 -- 1962) Municipal Stadium (1963 -- 1971) Arrowhead Stadium (1972 -- present)
Document 13: Green Bay Packers: The Packers have won 13 league championships, the most in NFL history, with nine pre-Super Bowl NFL titles in addition to four Super Bowl victories. The Packers won the first two Super Bowls in 1967 and 1968 and were the only NFL team to defeat the American Football League (AFL) prior to the AFL -- NFL merger. The Vince Lombardi Trophy is named after the Packers' coach Lombardi, who guided them to their first two Super Bowls. Their two additional Super Bowl wins came in 1997 and 2011.
Document 14: Kansas City Chiefs: The Chiefs have won three AFL championships, in 1962, 1966, and 1969 and became the second AFL team (after the New York Jets) to defeat an NFL team in an AFL -- NFL World Championship Game, when they defeated the Minnesota Vikings in Super Bowl IV. The team's victory on January 11, 1970, remains the club's last championship game victory and appearance to date, and occurred in the final such competition prior to the leagues' merger coming into full effect. The Chiefs were also the second team, after the Green Bay Packers, to appear in more than one Super Bowl (the first AFL team to do so) and the first to appear in the championship game in two different decades.
Document 15: Sherman Williams (American football): Sherman Williams No. 20 Position: Running back Born: (1973 - 08 - 13) August 13, 1973 (age 45) Mobile, Alabama Height: 5 ft 8 in (1.73 m) Weight: 202 lb (92 kg) Career information High school: Prichard (AL) Blount College: Alabama NFL Draft: 1995 / Round: 2 / Pick: 46 Career history Dallas Cowboys (1995 -- 1999) Career highlights and awards All - SEC (1994) Second - team All - American (1994) Florida Citrus Bowl MVP (1995) Super Bowl champion (XXX) Career NFL statistics Games played: 60 Rushing yards: 1,162 Rush Attempts: 302 Rushing TDs: 4 Receptions: 40 Player stats at NFL.com Player stats at PFR
ground_truth: January 11, 1970
sub_queries: Willie Ellison >> member of sports team Answer: Kansas City Chiefs
when was the last time Kansas City Chiefs went to the superbowl Answer: January 11, 1970