4

The American Revolution

4

From the American Revolution to the Civil War

4

Maddy's Oklahoma Diary

4

Famous Americans: Thomas Jefferson

4

Famous Americans: Abraham Lincoln

4

Maddy's Ohio Diary

4

Maddy's New Jersey Diary

4

Famous Americans: Benjamin Franklin

4

Maddy's Mississippi Diary

4

Maddy's New Hampshire Diary

4

Chip's Tips on United States

3

All About History

4

Maddy's Connecticut Diary

4

Maddy's Wisconsin Diary

3

Lunar Eclipse

4

An Introduction to the History of the United States of America

4

History of the United States

4

Maddy's Indiana Diary

3

The Earth

4

Maddy's New York Diary

4

Maddy's Michigan Diary

4

Maddy's Tennessee Diary

3

Solar Eclipse

4

Washington Monument

4

Maddy's Massachusetts Diary

4

Chip's Tips on Russia

4

Maddy's Pennsylvania Diary

4

Arc de Triomphe, France

3

Charles Darwin