20th Century American History tells about the ideas and issues that have shaped the United States in the 20th century from the bottom up. You can think of it not just as a series of history of America and its people, but a series of lessons. The subjects include exploration, revolution, social and political change, the rise of industry, modern technology and more. Learn English as you read and listen to the descriptions and histories of the United States. Adaptations are written at the intermediate and upper-beginner level and are read one-third slower than regular English. Audio can only be played on the tablets and apps and they're not compatible with eReaders.