3,700-year-old clay tablet has proven that the Babylonians developed trigonometry 1,500 years before the Greeks.
...The true meaning of the tablet has eluded experts until now...
he Greek astronomer Hipparchus, who lived around 120BC, has long been regarded as the father of trigonometry,
...The mathematical world is only waking up to the fact that this ancient but very sophisticated mathematical culture has much to teach us.”
This new study is published in Historia Mathematica.