Complex sentence: The Australian Cartoonists'Association is the Australian professional cartoonists' organisation and was established on 17 July 1924 as the Society of Australian Black and White Artists, became Black and White Artists Society and by 1938 had been changed to Black and White Artists Club.
Split into simpler sentences: The Australian Cartoonists'Association is the Australian professional cartoonists' organisation and was established on 17 July 1924 as the Society of Australian Black and White Artists. It soon became The Black and White Artists Society; and, by 1938,its name had been changed to The Black and White Artists Club.