A collection of resources about dams that includes basic facts about dams, challenges faced by dam builders, famous dams from around the world, and a lab that helps you understand different kinds of shapes used to construct dams. Also includes links to recommended websites on related topics. An excellent site for exploring Roman contributions to engineering and architecture.

U.S. History is designed to meet the scope and sequence requirements of most introductory courses. The text provides a balanced approach to U.S. history, considering the people, events, and ideas that have shaped the United States from both the top down (politics, economics, diplomacy) and bottom up (eyewitness accounts, lived experience). U.S. History covers key forces that form the American experience, with particular attention to issues of race, class, and gender.Senior Contributing AuthorsP. Scott Corbett, Ventura CollegeVolker Janssen, California State University, FullertonJohn M. Lund, Keene State CollegeTodd Pfannestiel, Clarion UniversityPaul Vickery, Oral Roberts UniversitySylvie Waskiewicz

The Stock Market Crash of 1929
President Hoover’s Response
The Depths of the Great Depression
Assessing the Hoover Years on the Eve of the New Deal

By the end of this section, you will be able to:

Identify the causes of the stock market crash of 1929
Assess the underlying weaknesses in the economy that resulted in America’s spiraling from prosperity to depression so quickly
Explain how a stock market crash might contribute to a nationwide economic disaster

U.S. History is designed for a two-semester American history sequence. It is traditional in coverage, following a roughly chronological outline, and using a balanced approach that includes political, economic, social, and cultural developments. At the same time, the book includes a number of innovative and interactive features designed to enhance student learning. Instructors can also customize the book, adapting it to the approach that works best in their classroom.