As we live our days by the clocks on our phones, it's pretty easy to think that we have time completely figured out. Don't be so sure. These crazy facts will leave you wondering if you ever knew anything at all!
The Aztecs seem like an ancient empire, and they were. They thrived in the 13th century and first existed way back in 1325. But did you know that Oxford University in England was founded even earlier? Teaching started there as far back as 1096 and the school was officially founded in 1249.