The ancient city of Holmul isn’t much to look at. To the casual observer it’s just a series of steep, forested hills in the middle of the jungle in ... thing to an empire in Maya history.

"Rock Around the Clock" had been recorded in 1954. But after the release of "Blackboard Jungle," it went to No. 3 on the R&B charts, and No. 1 on the pop charts. It was everywhere. "Bill worked ...