Complex sentence: The original school opened in October 1972 and was operated as West Morris Mount Olive High School by the West Morris Regional High School District until the 1978-1979 school year, when Mount Olive Township voters elected to leave the regional district.
Split into simpler sentences: The original school opened in 1972 and was operated as West Morris Mount Olive High School by the West Morris Regional High School district until the 1978-1979 school year. At that time, Mount Olive Township voters elected to leave the regional district.