What year was the United States Declaration of Independence signed?

The crown of the Empire State Building was originally built for what purpose?

When was the United States National Security Agency established?

What was found in 1946 by two young shepards near a cave?

How long did the Warsaw Uprising during World War II last?

How many manned moon landings have there been?

What was Manfred von Richthofen's nickname?

What is the oldest US state?

What is the mnemonic device for remembering the fates of the wives of Henry VIII?

Who was the President of the United States during the signing of the Gadsden Purchase?