premise: Olympic medal designs are chosen every Olympics.
hypothesis: Olympic medal . Medal designs have varied considerably since the first Olympic Games in 1896 , particularly in size and weight . A standard obverse ( front ) design of the medals for the Summer Olympic Games began in 1928 and remained for many years , until its replacement at the 2004 Games as the result of controversy surrounding the use of the Roman Colosseum rather than a building representing the Games ' Greek roots .