Complex sentence: Not all of the county colleges were founded by the State of New Jersey; the oldest county college in New Jersey, Union County College, was founded in 1933 by the Federal Emergency Relief Administration as Union County Junior College.
Split into simpler sentences: Not all of the county colleges were founded by the State of New Jersey. The oldest county college in New Jersey, Union County College, was founded in 1933 by the Federal Emergency Relief Administration as Union County Junior College.