The J1 League , a.k.a. the J.League or the Meiji Yasuda J1 League for sponsorship reasons, is the top level of the Japan Professional Football League system. Founded in 1992, it is one of the most successful leagues in Asian professional club football history. Contested by 20 clubs, it operates on a system of promotion and relegation with the J2 League. It was known as the J.League from 1993 to 1998 before becoming a two-division league, and as J.League Division 1 from 1999 to 2014.
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The J2 League or simply J2 is the second division of the Japan Professional Football League and the second level of the Japanese association football league system. The top tier is represented by the J1 League. It is currently sponsored by Meiji Yasuda Life and it is thus officially known as the Meiji Yasuda J2 League . Until the 2014 season it was named the J.League Division 2.
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