The 1980–81 season of the European Cup football club tournament was won for a third time by Liverpool in the final against Real Madrid. In the 11 seasons up to and including this one, there were only four winners of the European Cup (Ajax, Bayern Munich, Nottingham Forest and Liverpool), but there were eleven different runners-up. This record would have continued into the next year as well, but Bayern lost to first-time finalists Aston Villa.

Nottingham Forest, the defending champions, were eliminated by CSKA Sofia in the first round.

Budapest Honvéd won 11–0 on aggregate.

Aberdeen won 1–0 on aggregate.

Liverpool won 11–2 on aggregate.

CSKA Sofia won 2–0 on aggregate.

Szombierki Bytom won 4–2 on aggregate.

Bayern Munich won 7–2 on aggregate.

Ajax won 3–0 on aggregate.

Baník Ostrava won 2–1 on aggregate.

Dynamo Berlin won 4–2 on aggregate.

Spartak Moscow won 9–0 on aggregate.

Esbjerg won 3–2 on aggregate.

Real Madrid won 7–2 on aggregate.

Budapest Honvéd won 3–0 on aggregate.

Nantes won 3–0 on aggregate.

The UEFA Champions League /juːˈeɪfə ˈtʃæmpiənz ˈliːɡ/ known simply as the Champions League and originally known as the European Champion Clubs' Cup or European Cup, is an annual continental club football competition organised by the Union of European Football Associations (UEFA) since 1955 for the top football clubs in Europe. It is one of the most prestigious tournaments in the world and the most prestigious club competition in European football. The final of the competition is the most watched annual sporting event worldwide, drawing over 300 million television viewers.

Prior to 1992, the tournament was officially called the "European Champion Clubs' Cup," but was usually referred to simply as the "European Cup." The competition was initially a straight knockout competition open only to the champion club of each country. During the 1990s, the tournament began to be expanded, incorporating a round-robin group phase and more teams. Europe's strongest national leagues now provide up to four teams each for the competition. The UEFA Champions League should not be confused with the UEFA Europa League, formerly known as the UEFA Cup.

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.

Sir Alexander Chapman "Alex" Ferguson, CBE (born 31 December 1941) is a Scottish football manager and former player who has managed Manchester United since 1986. His tenure has seen the club go through an era of success and dominance both in England and in Europe, giving Ferguson a reputation as one of the most admired and respected managers in the history of the game.

Ferguson previously managed East Stirlingshire and St. Mirren, before a highly successful period as manager of Aberdeen. After a brief stint as manager of the Scotland national team following the death of Jock Stein, he was appointed manager of Manchester United in November 1986.

With 25 years as manager of Manchester United, he is the longest serving manager in their history after overtaking Sir Matt Busby's record on 19 December 2010. His tenure is also the longest of all the current League managers. During this time, Ferguson has won many awards and holds many records including winning Manager of the Year most times in British football history. In 2008, he became the third British manager to win the European Cup on more than one occasion.

José Zorrilla y Moral (Spanish pronunciation: [xoˈse θoˈriʎa]; 21 February 1817 – 23 January 1893), was a Spanish Romantic poet and dramatist.

He was born in Valladolid to a magistrate in whom Ferdinand VII placed special confidence,. He was educated by the Jesuits at the Real Seminario de Nobles in Madrid, wrote verses when he was twelve, became an enthusiastic admirer of Walter Scott and Chateaubriand, and took part in the school performances of plays by Lope de Vega and Calderón de la Barca.

In 1833 he was sent to study law at the University of Toledo, but after a year of idleness, he fled to Madrid, where he horrified the friends of his absolutist father by making violent speeches and by founding a newspaper which was promptly suppressed by the government. He narrowly escaped transportation to the Philippines, and passed the next few years in poverty.

The death of the satirist Mariano José de Larra brought Zorrilla into notice. His elegiac poem, read at Larra's funeral in February 1837, introduced him to the leading men of letters. In 1837 he published a book of verses, mostly imitations of Alphonse de Lamartine and Victor Hugo, which was so favourably received that he printed six more volumes within three years.