4

The American Revolution

4

The American Civil War

4

Famous Americans: Benjamin Franklin

4

Famous Americans: Thomas Jefferson

2

American Football

4

From the American Revolution to the Civil War

4

After the American Civil War

4

Early North American Settlers

4

Famous Americans: George Washington

4

Early Native Americans

4

Famous Americans: Abraham Lincoln

4

Maddy's Delaware Diary

4

Maddy's Wisconsin Diary

4

Maddy's North Carolina Diary

4

Maddy's Arizona Diary

3

Trenches of the World

3

Martin Luther King, Jr.

3

Thurgood Marshall

4

Maddy's Idaho Diary

4

Maddy's Rhode Island Diary

3

Thanksgiving Day

4

Maddy's Mississippi Diary

3

Sacagawea

4

Maddy's Texas Diary

4

America in the 20th Century

2

Country Flags of Oceania

3

Dog Breeds - Herding Group

4

U.S.S. Arizona Memorial at Pearl Harbor

3

Coral Reefs of the World

4

Gateway Arch