Here is a comprehensive summary of the Wikipedia article on Las Vegas:

Las Vegas, often nicknamed "Sin City" and the "Entertainment Capital of the World," is Nevada's most populous city, renowned globally for its gambling, luxury casino-hotels, and vibrant nightlife. Founded in 1905 and incorporated in 1911, the city's name derives from the Spanish for "the meadows," given by explorer Antonio Armijo in 1829, and it now attracts over 40.8 million visitors annually. A pivotal year was 1931, when Nevada legalized casino gambling and shortened divorce residency to six weeks, while construction began on the nearby Hoover Dam, sparking massive population growth. Interestingly, the famous Las Vegas Strip lies outside city limits in the unincorporated towns of Paradise and Winchester, whereas downtown's Fremont Street honors explorer John C. Frémont. With 641,903 residents in 2020 and a metro area of 2.4 million, it serves as Nevada's leading financial and cultural center, having grown by 85.2% between 1990 and 2000.