<Ul> <Li> A professional wrestling aerial technique used by The Undertaker </Li> <Li> A production made before the mid-1990s in demoscene </Li> <Li> Koryū, translated as "old school" or "traditional school", a category of Japanese martial arts </Li> <Li> Old School--New School Controversy, a schism of the Presbyterian Church in the United States of America </Li> </Ul> <Li> A professional wrestling aerial technique used by The Undertaker </Li> <Li> A production made before the mid-1990s in demoscene </Li> <Li> Koryū, translated as "old school" or "traditional school", a category of Japanese martial arts </Li>

Where did the term old school come from