Question: Which ended on an earlier date in May of its corresponding year, 2010–11 La Liga or 2009–10 La Liga?

Context paragraphs:
2004–05 FC Barcelona season: The 2004-05 season saw Fútbol Club Barcelona end their six-year wait for the La Liga title, having not won the league or, indeed, any trophy since the 1998–99 season and thus La Liga trophy returned in Barcelona's trophy room.  Having finished second in La Liga the previous season, Barcelona once again competed in the UEFA Champions League as well as the Copa del Rey.  The squad was restructured significantly following the retirement of key players Luis Enrique and Marc Overmars, as well as the return of Edgar Davids to Juventus and first team regulars Patrick Kluivert and Phillip Cocu moving onto new clubs.  Ronaldinho's and new signing Samuel Eto'o's performances won them places in FIFPro's XI of 2004–05.  Ronaldinho was later named FIFA World Player of the Year for 2005 for the second time in succession and with the highest points total ever; Eto'o came third.  This season was also notable for the debut of Lionel Messi.

Lionel Messi: Lionel Andrés "Leo" Messi (] ; born 24 June 1987) is an Argentine professional footballer who plays as a forward for Spanish club Barcelona and the Argentina national team.  Often considered the best player in the world and regarded by many as the greatest of all time, Messi is the only player in history to win five FIFA Ballon d'Or awards, four of which he won consecutively, and a record-tying four European Golden Shoes.  He has won 29 trophies with Barcelona, including eight La Liga titles, four UEFA Champions League titles, and five Copas del Rey.  Both a prolific goalscorer and a creative playmaker, Messi holds the records for most official goals scored in La Liga (358), a La Liga season (50) and a club football season in Europe (73), a calendar year (91), as well as those for most assists made in La Liga (138) and the Copa América (11).  He has scored over 600 senior career goals for club and country.

Adolfo Martín González: Adolfo Martín González (born December 9, 1910, date of death unknown) was a Spanish footballer who played for La Liga side Real Betis.  He is noted as being the first Real Betis player to score in La Liga.  He scored in a 9-1 loss to the 1932/1933 champions Athletic Bilbao.  From 1932 through to 1936, Adolfo Martín appeared in 49 La Liga games, scoring 12 goals.  He was born in La Laguna, Tenerife.

2007–08 La Liga: The 2007–08 La Liga season, the 77th since its establishment, started on 25 August 2007 and finished on 18 May 2008.  Real Madrid defended their La Liga title successfully after a 2–1 victory over Osasuna.  This season, all European leagues ended earlier than the previous season, due to the UEFA Euro 2008 championship.  It also was the first year of the new La Liga television agreement that had La Sexta mark its first year of television broadcasting.

List of La Liga stadiums: Since the inception of La Liga in 1929, Spain's highest level of association football annual league tournament, 85 football stadiums have been used to host matches, with one more stadium set to host its first La Liga match in the 2016–17 season.  The inaugural round of La Liga matches took place on 10 February 1929 with five clubs hosting the opening fixtures.

2010–11 La Liga: The 2010–11 La Liga season (known as the "Liga BBVA" for sponsorship reasons) was the 80th since its establishment.  The campaign began on 28 August 2010 and ended on 21 May 2011.  A total of 20 teams contested the league, 17 of which already contested in the 2009–10 season and three of which were promoted from the Segunda División.  In addition, a new match ball – the Nike Total 90 Tracer – served as the official ball for all matches.

List of Real Madrid C.F. players: Real Madrid C.F. is a professional association football club based in Madrid, Spain, that plays in La Liga.  The club was formed in 1902 as Madrid Football Club, and played its first competitive match on 13 May 1902, when it entered the semi-final of the Campeonato de Copa de S.M. Alfonso XIII.  Real Madrid was one of the founding members of La Liga in 1929, and is one of three clubs, including FC Barcelona and Athletic Bilbao, to have never been relegated from the league.  Since then, the club's first team has competed in numerous nationally and internationally organised competitions.  Real is the most successful club in Spanish football, having won a total of 64 domestic titles; a record 33 La Liga titles, 19 Spanish Cups, 10 Spanish Super Cups, 1 Copa Eva Duarte and 1 League Cup.  Real is the most successful club in European football, having won twenty one official UEFA trophies in total.

2011–12 Real Valladolid season: The 2011–12 Spanish football season is Real Valladolid's second season in the second level in Spanish football after being defeated 3–2 on aggregate against Elche in La Liga promotion play-off in June 2011.  This season will be the 31st of Real Valladolid in the second level in Spanish football.  The general coordinator during last season, Chuti Molina, left his work on 14 June, becoming Real Murcia general director.  On 17 June, Real Valladolid made official Abel Resino's detachment as he did not renew his contract as team manager.  On 4 July, Carlos Suárez announced he had bought 59% of the club shareholding, becoming shareholder of Real Valladolid, and therefore the owner of the entity.  At the same time he confirmed that he will not step down as chairman and, from the next day, news about the sporting aspect will be known.  Earlier on 6 July, the club became official the incorporation of the Serbian manager Miroslav Đukić for the next 3 seasons.  During that day, it also was confirmed that José Antonio García Calvo, general director, left his work. <br>Real Valladolid qualified in 3rd position in Segunda División, behind both Deportivo and Celta de Vigo, with 82 points.  It was the first time in the history that any team with 80+ points wasn't directly promoted to La Liga.  Deportivo de La Coruña beat Real Valladolid's points record, getting 91 points in the whole season.  The record was established by José Luis Mendilibar's team in 2007 when Real Valladolid scored 88 points and were champions. <br>The team had to play the Promotion play-off again, and got the promotion to 2012–13 La Liga by winning 3–0 on aggregate to Córdoba in the Semifinal and by 2–1 to AD Alcorcón in the Final.

Ferdinand Daučík: Ferdinand Daučík (also known as Fernando Daucik; 30 May 1910–14 November 1986) was a Slovak football player and manager.  Daučík was the manager of several La Liga clubs, most notably Barcelona, Atlético Bilbao, Atlético Madrid and Real Zaragoza.  During his career, he managed La Liga clubs in 488 matches, won three La Liga titles and won the Copa del Generalísimo on five occasions and won three La Liga/Copa doubles.  He died in Alcalá de Henares.

2009–10 La Liga: The 2009–10 La Liga season (known as the "Liga BBVA" for sponsorship reasons) was the 79th La Liga since its establishment.  Barcelona were the defending champions, having won their 19th La Liga title in the previous season.  The campaign began on 29 August 2009 ended on 16 May 2010 due to all top-flight European leagues ending earlier than the previous season because of 2010 FIFA World Cup.

Supporting paragraphs: 2010–11 La Liga 2009–10 La Liga
Answer: 2009–10 La Liga