Question: What year were Olympic Games hosted at the stadium that hosted the UEFA Euro 2012 Final?

Context paragraphs:
UEFA Euro 2012 Final: The UEFA Euro 2012 Final was a football match that took place on 1 July 2012 at the Olympic Stadium in Kiev, Ukraine, to determine the winner of UEFA Euro 2012.  Spain, who defeated Germany 1–0 to win Euro 2008, successfully defended their title with a 4–0 win over Italy, becoming the first team to win two consecutive European Championships, and the first team to win three consecutive major tournaments – Euro 2008, the 2010 World Cup and Euro 2012.  It was the greatest margin of victory in the history of the European Championship finals, and the fourth time that teams who played each other in the group stage played each other again in the final (1988, 1996 and 2004).

UEFA European Championship mascot: The UEFA European Football Championship has featured mascots since 1980.  The very first mascot was "Pinocchio", for the UEFA Euro 1980 in Italy.  Since then, every tournament has had a mascot except for the UEFA Euro 2008 and UEFA Euro 2012, that both had two.  The mascots are mostly targeted at children, with cartoon shows and other merchandise released to coincide with the competition.

Armenia national football team: The Armenia national football team (Armenian: Հայաստանի ֆուտբոլի ազգային հավաքական , "Hayastani futboli azgayin havak'akan") represents Armenia in association football and is controlled by the Football Federation of Armenia, the governing body for football in Armenia.  After gaining independence from the Soviet Union, the team played its first international match on October 12, 1992.  Armenia's home ground is the Republican Stadium in Yerevan and their head coach is Artur Petrosyan.  The national team has participated in the qualification of every major tournament from the UEFA Euro 1996 onwards, though they are yet to qualify for the knockout stage in either a UEFA European Football Championship or a FIFA World Cup.  In what was the Armenian national squad's greatest success at present, the team came in third place in the UEFA Euro 2012 qualifying stage, with controversial officiating preventing them from achieving second place, and hence moving on to the final tournament.

Italy–Spain football rivalry: The Italy–Spain football rivalry is a football rivalry between the national football teams of Italy and Spain, having achieved five FIFA World Cups between the two countries.  They have played against each other three times in the World Cup and six times in the UEFA European Championship.  Most notably, the two met at the UEFA Euro 2012 Final, which Spain won 4–0.  They have also met at the 2013 FIFA Confederations Cup.

UEFA Euro 2012 qualifying play-offs: The UEFA Euro 2012 qualifying play-off ties were played over two legs, with the first legs on 11 November and the second legs on 15 November 2011.  The four winners are found according to the standard rules for the knockout phase in European competitions, and the winners qualified for the Euro 2012 tournament.  Qualifying play-offs was a second stage (round) of UEFA Euro 2012 qualifying.

Olimpiyskiy National Sports Complex: The Olympic National Sports Complex (also known as Olympic Stadium; Ukrainian: Національний спортивний комплекс "Олімпійський" ) is a multi-use sports and recreation facility in Kiev, Ukraine, located on the slopes of the city's central Cherepanov Hill, Pechersk Raion.  The stadium is the premier sports venue in Ukraine and the second largest in Eastern Europe after Moscow's Luzhniki Stadium.  The complex beside its stadium also features several other sports facilities and is designed to host the Olympic Games (the stadium hosted some football matches at the 1980 Summer Olympics).

UEFA Euro 2012 qualifying: The qualifying competition for UEFA Euro 2012 was a series of parallel association football competitions held over 2010 and 2011 to decide the qualifiers for UEFA Euro 2012, held in Poland and Ukraine.  The draw for the qualifying rounds was held on 7 February 2010 in the Congress Hall of the Palace of Culture and Science, Warsaw, with matches set to take place between August 2010 and November 2011.

UEFA Euro 2012: The 2012 UEFA European Championship, commonly referred to as UEFA Euro 2012 or simply Euro 2012, was the 14th European Championship for men's national football teams organised by UEFA.  The final tournament, held between 8 June and 1 July 2012, was co-hosted for the first time by Poland and Ukraine, and was won by Spain, who beat Italy 4–0 in the final at the NSC Olimpiyskiy in Kiev, Ukraine.

UEFA Euro 2012 (video game): UEFA Euro 2012 is the official video game of the UEFA Euro 2012 football tournament.  Unlike previous "Euro" games, it is a downloadable expansion pack for "FIFA 12", requiring that game and internet connection.  It was released on 24 April 2012.  British commentary Clive Tyldesley and Andy Townsend are provided again in this game.

Poland at the UEFA European Championship: Poland have participated in three UEFA European Championships so far: UEFA Euro 2008, UEFA Euro 2012 and UEFA Euro 2016.

Supporting paragraphs: UEFA Euro 2012 Final Olimpiyskiy National Sports Complex
Answer: 1980