Question: When was the team coach Panathinaikos born who was appointed on 13 June 2008?

Context paragraphs:
Henk ten Cate: Henk ten Cate (] , born 9 December 1954) is a Dutch football manager, former professional player, and current coach of Al Jazira.

Yasuharu Kawase: Yasuharu Kawase (河瀬泰治 , Kawase Yasuharu ) , (born Osaka, 15 June 1959) is a former Japanese rugby union player.  He played as flanker.  A former Japanese international, former forwards coach of the Japanese national team and head coach for the Japanese U21 and U23 national teams.  Kawase was also appointed as Japan selection coach, Japan A national team coach, head coach of the Japan students national team, as well as Kansai representative coach.  Currently, he coaches Setsunan University RFC (inaugurated in 1986), which plays in the Kansai University Rugby Football Leagues' A League.  He is also a teacher at Setsunan University.

2008–09 Panathinaikos F.C. season: The 2008–09 season is Panathinaikos' 50th consecutive season in the Superleague Greece.  They have qualified for the UEFA Champions League second qualifying round for the 2008–09 season.  The 2007–08 season ended with Jose Peseiro's removal from the team's bench.  After a year's absence they will return to Athens Olympic Stadium for the season.  On 27 May 2008 after two hours of conversations between Panathinaikos chairmen,it was decided that Nikos Pateras would take over as Panathinaikos president.  On 13 June 2008 Panathinaikos announced that the new team coach will be Henk ten Cate for the next two years.

Fanis Tzandaris: Theofanis Tzandaris (Greek: Θεοφάνης Τζανδάρης , born 13 June 1993) is a Greek professional footballer who plays as a midfielder for Panathinaikos.

Nikolaos Vlasopoulos: Nikolaos "Nikos" Vlasopoulos (born 30 May 1988 in Patras, Greece) is a football midfielder.  He played for Thyella first team for 3 seasons, from 2005-2006 to 2007-2008, and as of 13 June 2008 he was a Larissa player with a 5-year contract.  He was released on a free on July 2010 and on 31 August 2010 he signed a contract with Panserraikos F.C..  On 21 December 2010 Panachaiki announced that Vlasopoulos signed a four-year contract with the club.

Sotiris Manolopoulos: Sotirios Alex Manolopoulos, commonly known as Sotiris Manolopoulos (Greek: Σωτήρης Μανωλόπουλος ; born June 27, 1970) is a Greek retired professional basketball player and a basketball coach.  Born in Athens, he played college basketball at Boston University.  After graduating, he returned to his native Greece, to play professional basketball.  He served as an assistant coach in several teams in the Greek Basket League, before he was appointed the head coach of Panathinaikos, in May 2015.

Per Fuglum: Per Fuglum (7 January 1924 – 13 June 2008) was a Norwegian historian, born in Oslo.  He was appointed professor at the University of Trondheim in 1973.  Among his works are biographies of the Norwegian prime ministers Ole Richter (from 1964) and Gunnar Knudsen (from 1989).  He has also written books on the history of temperance in Norway.

Argiris Mitsou: Dr. Argiris Mitsou (Greek: Αργύρης Μήτσου) (born April 7, 1950) is a Greek surgeon who for many years was the Greece national football team and Panathinaikos FC doctor.  The Greek businessman Giannis Vardinogiannis (shareholder of Panathinaikos) promoted him as the team president in 2004, a position he held until June 2008, when Nikos Pateras was announced as the new team president.

Andy Tillson: Andy Tillson (born 30 June 1966 in Huntingdon) is a football coach and former player who was head coach at Team Bath.  Following Team Bath's decision to disband at the end of the 2008/9 season, Tillson was initially appointed as Weymouth's Assistant Manager, but on 15 June 2009 it was announced that he would instead join Exeter City as First Team Coach under manager Paul Tisdale.

Fragiskos Alvertis: Fragiskos "Frankie" Alvertis (Greek: Φραγκίσκος "Φράνκι" Αλβέρτης ) (born June 11, 1974) is a Greek former professional basketball player and current general manager of Panathinaikos Athens.  As a player, he was the captain of Panathinaikos, where he spent his whole career.  On February 3, 2008, Alvertis was chosen as one of the 50 Greatest EuroLeague Contributors over the last half-century by the Euroleague Basketball Experts Committee, in recognition of his major contribution to Panathinaikos' rise on the continental scene.

Supporting paragraphs: 2008–09 Panathinaikos F.C. season Henk ten Cate
Answer: 9 December 1954