4

From the American Revolution to the Civil War

4

The American Civil War

4

After the American Civil War

4

Early Native Americans

4

Famous Americans: Benjamin Franklin

4

The American Revolution

4

Early North American Settlers

4

Famous Americans: George Washington

4

Famous Americans: Thomas Jefferson

2

American Football

4

Famous Americans: Abraham Lincoln

3

Thurgood Marshall

4

Gateway Arch

3

Coretta Scott King

4

Mount Rushmore

3

Martin Luther King, Jr.

3

Rosa Parks

4

Washington Monument

2

Thanksgiving Day

3

Frederick Douglass

4

America in the 20th Century

4

Grand Canyon

4

Niagara Falls

2

Country Flags of Oceania

4

An Introduction to the History of the United States of America

4

Hoover Dam

3

Harriet Tubman

4

The Golden Gate Bridge

4

The Statue of Liberty

4

The White House