MGM Grand fire (1980)

On November 21, 1980, a fire at the MGM Grand Hotel and Casino killed 85 people and injured hundreds, making it one of the deadliest hotel fires in U.S. history. The blaze prompted major changes to fire safety regulations and building codes for hotels and high-rise structures nationwide. Investigations and reforms after the fire led to improved sprinkler, alarm, and evacuation standards in Nevada and elsewhere.