Nevada January 31, 2024 8:38 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 1:54 Woman attacked by coyote while hiking in Southington 1:07 More than 50 people stranded on roof of Tennessee hospital flooded by Helene 2:17 Vernon police arrest teen suspected in threats to several schools, places of worship 1:02 WATCH: Aerial images show Helene's trail of destruction in Florida 0:42 WATCH: Coast Guard rescues man and dog after boat fails during hurricane