Economic history
Las Vegas started as a stopover on the pioneer trails to the west and became a popular railroad town in the early 1900s. It was a staging point for all the mines in the surrounding area, especially those around the town of Bullfrog, that shipped their goods out to the rest of the country. With the growth of the railroads, Las Vegas became less important, but the completion of the nearby Hoover Dam resulted in substantial growth in tourism, which, along with the legalization of gambling, led to the advent of the casino-hotels for which Las Vegas is famous.
The constant stream of tourist dollars from the hotels and casinos was augmented by a new source of federal money. This money came from the establishment of what is now Nellis Air Force Base. The influx of military personnel and casino job-hunters helped start a land building boom which still goes on today.
(Source: Wikipedia.org)
