Complex sentence: Aabel spent a number of years as a principal actor and teacher with major theatre companies in Oslo during the 1930s, and was the director of Carl Johan Teatret between 1933 to 1938.
Split into simpler sentences: Aabel spent a number of years as a principal actor and teacher with major theatre companies in Oslo during the 1930s. Aabel was the director of Carl Johan Teatret between 1933 to 1938.