Among milestones reached in 1993 was the production of the 1,000th Boeing 747. In the years since the first 747 was rolled out in 1968, the wide-body transport has carried more than 1.4 billion passengers and flown more than 17.9 billion miles. Boeing has evolved 15 versions of the aircraft to meet airline needs. The 1,000th 747 was delivered to Singapore Airlines in October 1993.