Complex sentence: The Princeton Engineering Anomalies Research (PEAR) program was established at Princeton University in 1979 by Robert G. Jahn, an aerospace engineer who was then Dean of the School of Engineering and Applied Science.
Split into simpler sentences: The Princeton Engineering Anomalies Research (PEAR) program was established at Princeton University in 1979 by Robert G. Jahn. Jahn was Dean of the School of Engineering and Applied Science.