What Was the Hindenburg?

Isaac Newton

Where Is the Tower of London?

Who Was William Shakespeare?

Who Was Louis Armstrong?

Who Was Abraham Lincoln?

Who Was Sally Ride?

What Is the Panama Canal?

Who Was Sojourner Truth?

Where Is the Empire State Building?

What Was Pompeii?

What Was the Great Depression?

What Were the Salem Witch Trials?

What Was the Great Chicago Fire?

Leonardo da Vinci

Who Was Dr. Seuss?

Who Is Hillary Clinton?

Albert Einstein and Relativity for Kids: His Life and Ideas with 21 Activities and Thought Experiments

What Was the Wild West?

Hitler's Last Days: The Death of the Nazi Regime and the World's Most Notorious Dictator