An extensive study recently revealed that only around 1 in 3 American citizens are actually able to pass the United States Citizenship Test as it is given today. And strikingly, those over 65 were 75% successful, while those under 45 were only 19% successful.  Largely based on historical facts and significant dates and documents, it's become apparent that most Americans don't know the U.S. history aspiring citizens are required to learn  – and the majority can't answer almost any of the questions in detail. So how do you stack up? Take this quiz based on the official test study guide to find out!