Complex sentence: When he returned to London in 1979, he took a position as head of the glass area at the Buckingham College of Higher Education, which later named him head of the Ceramics and Glass Department at the school.
Split into simpler sentences: When he returned to London in 1979, he took a position as head of the glass area at the Buckingham College of Higher Education. He was later named head of the Ceramics and Glass Department at the school.