Nevada January 31, 2024 5:38 pm Why is Las Vegas called ‘Sin City'? The city’s distinctive nickname has its origin in the early 1900s when illicit activities, including gambling and prostitution, became prevalent in Clarks County. US & World Videos 0:45 A'ja Wilson named WNBA MVP, Caitlin Clark AP Rookie of the Year 2:53 Kamala Harris reacts to Taylor Swift's endorsement 2:03 Snoop Dogg reveals how coaching football prepared him for ‘The Voice' 0:39 Bridge Fire area hiking trails closed through December 2025 5:49 John Travolta's daughter Ella Travolta on working on song honoring late mom