This ancient tablet might rewrite this history of math as we know it

Thankfully, very few of us have to bother with trigonometry on a daily basis, but regardless of how much you may have dreaded studying it (or any math, for that matter) in school, it's still fundamental to our modern understanding of measurements. Hipparchus, a Greek mathematician and astronomer whose work dates to between 160 and 120 BC, is credited as the father of trigonometry, but a nearly 4,000-year-old stone tablet may be about to totally rewrite the history books. The tablet, which is cal...