The title of arhat (called lohan in Chinese, nanhan in Korean or rakan in Japanese) distinguishes the original disciples of the Historical Buddha (just as the disciples of Jesus Christ are called apostles). Often known by name and affiliated with particular stories and iconography, over the past 2500 years different groupings of arhat became popular in different Buddhist regions. Tibetan Buddhist religious art usually depicts groupings of either sixteen or eighteen arhat, but in the Chinese and Japanese Buddhist traditions even larger groups of as many as five hundred arhat became mythologized.