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