Complex sentence: The Herman Ostrow School of Dentistry was established in 1897 as simply the "University of Southern California School of Dentistry," and graduated its first class of 11 students in 1900.
Split into simpler sentences: The Herman Ostrow School of Dentistry is the dental school of the University of Southern California. It was established in 1897 as simply the "University of Southern California School of Dentistry," and graduated its first class of 11 students in 1900.