Complex sentence: The new 120,000 square-foot building was constructed in a record 10 months and by January 2002, the College's predecessor, the Gwinnett University Center, would open its doors.
Split into simpler sentences: The new 120,000 square-foot building was constructed in a record 10 months. By January 2002, the College's predecessor, the Gwinnett University Center, opened its doors.