Complex sentence: It was the sixth time the Tour de France started in the Netherlands, after 1954, in Amsterdam; 1973, in Scheveningen; 1978, in Leiden; 1996, in's-Hertogenbosch; and 2010, in Rotterdam.
Split into simpler sentences: It was the sixth time the Tour de France started in the Netherlands. The previous five were: 1954, in Amsterdam; 1973, in Scheveningen; 1978, in Leiden; 1996, in's-Hertogenbosch; and 2010, in Rotterdam.