The Cocoanut Grove nightclub fire was the worst fire disaster in American history. It occurred November, 1942 in Boston, MA. 492 people were killed and 100s more injured. The nightclub was filled to double its legal capacity when it caught fire. It was the result of a busboy using a match to replace a burned out light bulb. The fire took off in seconds. Many exits were blocked or locked, the doors opened inwards, victims were crushed in the revolving doors. Today it's a parking lot.