Complex sentence: Mark Roosevelt, a well-known senior education administrator, previously the superintendent of Pittsburgh Public Schools was appointed President, and a reopened and separate Antioch College welcomed its first class of students in the fall of 2011.
Split into simpler sentences: Mark Roosevelt, a well-known senior education administrator, previously the superintendent of Pittsburgh Public Schools was appointed President. A reopened and separate Antioch College welcomed its first class of students in the fall of 2011.