Complex sentence: On August 22,2003, the Tacoma Link light rail line in Downtown Tacoma opened and quickly reached its forecast ridership, and a couple months later, on November 8,2003, a groundbreaking ceremony was held for the Central Link light rail line.
Split into simpler sentences: On August 22,2003, the Tacoma Link light rail line in Downtown Tacoma opened and quickly reached its forecast ridership. On November 8,2003, a groundbreaking ceremony was held for the Central Link light rail line.