9 Major Revisions That Reshape Science and History

History and science books have all the right answers, right? Right?

New discoveries keep our world turning 'round, but how are we supposed to disavow facts that every teacher from kindergarten through high school drilled into our heads?

The death of certain theories doesn't mean that scientists and historians are lying to us — rather, it means society is getting a little bit closer to the truth. Below, we've compiled some mind-blowing revisions and revelations to the world as we know it. Some may result in totally new school curricula — and for others, it's an edited Wikipedia page or two.

1. A professor discovered a new human body part.