Book excerpt: In this rich history of Italy's Tiber River, Bruce Ware Allen charts the main currents, mythic headwaters, and hidden tributaries of one of the world's most renowned waterways. He considers life along the river, from its twin springs high in the Apennines all the way to its mouth at Ostia, and describes the people who lived along its banks and how they made the Tiber work for them. The Tiber has served as the realm of protomythic creatures and gods, a battleground for armies and navies, a livelihood for boatmen and fishermen, the subject matter of poets and painters, and the final resting place for criminals and martyrs. Tiber: Eternal River of Rome is a highly readable history and a go-to resource for information about Italy's most storied river.