Several recent studies have shown that American students are alarmingly ignorant about U.S. history and world events.
Experts have attributed the problem to everything from failing schools to substandard teachers.
But what about content?
Who Discovered America?
For instance, did you know that Muslims discovered America? Or that Jerusalem is an Arab city? That's just some of the "history" that students in America's K-12 classrooms have been taught in recent years--with the help of taxpayer money.
A new report by the non-profit Institute for Jewish and Community Research finds that American high school and elementary textbooks contain countless inaccuracies about Christianity, Judaism, Israel and the Middle East.
The Institute examined 28 of the most widely-used history, geography and social studies textbooks in America. It found at least 500 errors.
One book ignored the Jewish roots of Christianity, saying the faith was founded by a "young Palestinian" named Jesus.
Another stated as fact that the Koran was revealed to Mohammed from God.
Yet another said ancient Jewish civilization contributed "very little" to to the arts and sciences.