Complex sentence: Its collection was once one of the finest in Central Asia with over 100,000 items dated back several millennial, but in August and September 1996 the museum was ransacked during the rule of the Taliban.
Split into simpler sentences: Its collection was once one of the finest in Central Asia with over 100,000 items dated back several millennial. In August and September 1996 the museum was ransacked during the rule of the Taliban.