Complex sentence: In 1896 he was one of the founders of the Nagybánya artists'colony, and from 1902-27 he was a teacher at the Nagybánya Painters' Association, becoming its president in 1917.
Split into simpler sentences: In 1896 he was one of the founders of the Nagybánya artists'colony. From 1902-27, he was a teacher at the Nagybánya Painters' Association, becoming its president in 1917.