Tibia ball league was first "invented" on Antica by the guild Mercernary who hosted these games at Fibula. One of the first TBL games that theres still screen shots of was played in 2003, there have been tournaments ever since with exceptions of war and such. In the earliest years the prizes was supplied by the CiP team and means TBL is a cause there is even more rares on Antica Rules etc about the game(From mercernarys guild page):