A new article in the Journal of Wine Economics gives an informative and interesting history of beer in the United States, with a special focus on craft beer. While they do some statistical analysis at the end, most of the article tells a story that everyone should be able to understand. I could give you the basics of the story but I think their graphs do that best:
We have gone from the dark ages of 1979 when Americans only drank Bud and Miller to the amazing variety of beer available today. Check out the article for stories of the people behind the craft beer revolution, and for an attempt to explain why it happened and why it happened in the states where it did.