4

Famous Americans: Benjamin Franklin

4

History of the United States

4

Maddy's New Hampshire Diary

4

Lightning

4

The American Revolution

4

Maddy's Tennessee Diary

4

America in the 20th Century

3

Inventors and Inventions

4

Money

4

From the American Revolution to the Civil War

4

An Introduction to the History of the United States of America

4

Maddy's New York Diary

4

The White House

4

U.S.S. Arizona Memorial at Pearl Harbor

4

Maddy's Massachusetts Diary

4

Maddy's Washington Diary

4

Chip's Tips on United States