Maintaining the features that have always distinguished this classic text—lively and accessible narrative style, a keen balance of political with social and cultural history, and exceptional value—the Seventh Edition introduces a completely redesigned, full-color layout complemented by eye-catching maps and enhanced pedagogy. The Seventh Edition also introduces the new theme of environmental history. Carefully integrated throughout, this theme adds illuminating perspectives on how Americans have shaped—and been shaped by—the natural world.