The first ever Telders Competition was organized in 1977 on the occasion of the 30th anniversary of the Telders International Law Students Debating Society. Student teams from the universities of Bonn, Cologne, Strasbourg, and Leiden participated. It was so successful that the competition has been held annually ever since. Nowadays it is considered to be the most prestigious and important international moot court competition in Europe. Teams from more than 40 universities compete in the national rounds, with up to 25 teams from as many European countries participating in the international rounds held in the Peace Palace in The Hague.