Leeds United Association Football Club is an English football club based in Beeston, Leeds, West Yorkshire. Founded in 1919, they play in the Football League Championship, the second tier of the English football league system. The club's home ground is Elland Road.

The club's most common nicknames are "The Whites", "United" and "The Peacocks", the latter stemming from the former name of Elland Road, The Old Peacock Ground. Although the club's name includes "AFC", the current badge reads "LUFC".

The club have competed at the top level of English football for the majority of their existence, following the disbanding of predecessor Leeds City in 1919. Under the management of Don Revie during the 1960s and 1970s, Leeds won two First Division titles, the FA Cup, the League Cup and the Inter-Cities Fairs Cup twice. Eight years after Revie's departure to manage the England team, Leeds were relegated to the Second Division in 1982, not returning to the top flight until 1990, when they were managed by Howard Wilkinson. Leeds were league champions two seasons later, in 1992. During the 1990s and early 2000s Leeds competed for places in Europe, reaching the semi-finals of the UEFA Cup and the UEFA Champions League in consecutive seasons. However, after severe financial difficulties and a mass sale of players, Leeds were relegated from the Premier League and subsequently from The Championship three years later. After three seasons in League One they were promoted back to the Championship on the last day of the 2009–10 season.

Coordinates: 53°47′59″N 1°32′57″W / 53.79972°N 1.54917°W / 53.79972; -1.54917 Leeds (ⁱ/ˈliːdz/) is a city and metropolitan borough in West Yorkshire, England. In 2001 Leeds' main urban subdivision had a population of 443,247, while the entire city has a population of 798,800 (2011 est.), making it the 24th-most populous city in the European Union

Leeds is the cultural, financial and commercial heart of the West Yorkshire Urban Area, which at the 2001 census had a population of 1.5 million, and the Leeds-Bradford Metropolitan Area, of which Leeds is the integral part, had a population of around 2.3 million, making it the fourth-largest metropolitan area in the United Kingdom. In addition, the Leeds city region, an economic area with Leeds at its core, had a population of 2.9 million. Leeds is the UK's largest centre for business, legal, and financial services outside London, and its office market is the best in Europe for value. Leeds is considered a Gamma World City, alongside cities such as Phoenix, St. Petersburg and Valencia.

Football Club Internazionale Milano S.p.A., commonly referred to as Internazionale or simply Inter, is a professional Italian football club based in Milan, Lombardy. The club is commonly known as Inter Milan outside of Italy. They have spent their entire history in the top flight First Division (known as Serie A since 1929). Internazionale have won 30 domestic trophies, including the league eighteen times, the Coppa Italia seven and the Supercoppa Italiana five. From 2006 to 2010 the club won five successive league titles, equalling the all-time record. They have won the Champions League three times; two back-to-back in 1964 and 1965 and then another in 2010. The last completed an unprecedented Italian treble with the Coppa Italia and the Scudetto. The club has also won three UEFA Cups, two Intercontinental Cups and one FIFA Club World Cup.

Inter's home games are played at San Siro, also known as the Stadio Giuseppe Meazza. The stadium, which is shared with A.C. Milan, is the largest in Italian football, with a total capacity of 80,018. Milan are considered one of their biggest rivals, and matches between the two teams are called Derby della Madonnina, which is one of the most followed derbies in football. As of 2010, Inter is the second most supported team in Italy, and the eighth most supported team in Europe. The current president and owner of Inter is Massimo Moratti. The club is one of the wealthiest and most valuable in Italian and world football. It was a founding member of the now-defunct G-14 group of Europe's leading football clubs as well as its replacement, the European Club Association.

Carl Zeiss (11 September 1816 – 3 December 1888) was a German maker of optical instruments commonly known for the company he founded, Carl Zeiss Jena (now: Carl Zeiss AG). Zeiss made contributions to lens manufacturing that have aided the modern production of lenses. Raised in Weimar, Germany, he became a notable lens-maker in the 1840s when he created high-quality lenses that were "wide open", or in other words, had a very large aperture range that allowed for very bright images. He did this in the city of Jena at a self-opened workshop, where he started his lens-making career. At first his lenses were only used in the production of microscopes, but when cameras were invented, his company began manufacturing high-quality lenses for cameras.

Zeiss began his life in pre-imperial Germany where he went to a grammar school, and undertook apprenticeship under Dr. Friedrich Körner, mechanic and supplier to the court. He later attended lectures in mathematics, experimental physics, anthropology, mineralogy and optics at the University of Jena. After seven years he opened a small workshop with hardly any tools. He made many lenses but had little recognition until 1847 when he hired his second and third apprentice.

Gary Andrew Speed, MBE (8 September 1969 – 27 November 2011) was a Welsh football player and manager. He is best known for his spell between 1984 and 1996 at Leeds United where he won the English Football League First Division Championship in 1992, and also for his spell between 1998 and 2004 at Newcastle United. He was also the captain of the Wales national football team until he retired from international football in 2004. He remains the most capped outfield player for Wales and the second overall, having appeared 85 times at senior level between 1990 and 2004, playing mainly as a left-side attacking midfielder. He started off his career in 1988 and retired in 2010. Speed was appointed manager of Sheffield United in 2010, but he left the club after a few months in December 2010 to manage the Wales national team.

Speed played professionally for Leeds United, Everton, Newcastle United, Bolton Wanderers and Sheffield United. Rarely troubled by injury or suspension, he held the record for the most appearances in the Premier League at 535, until it was surpassed by David James. At the time of his death, only James and Ryan Giggs had played in more Premier League matches than Speed. Including his appearances in The Football League and cup competitions, he made 840 domestic appearances, in addition to 85 full caps at international level. He played in the Leeds United team that won the Football League First Division championship in 1991–92, the year before the FA Premier League was formed. He also played in consecutive FA Cup finals for Newcastle United, losing to Arsenal in 1998 and to Manchester United in 1999.