The Babylonians could measure angles

The Babylonians could measure angles, and are believed to have invented the division of the circle into 360º.1 However, it was the Greeks who are seen as the original pioneers of trigonometry.

A Greek mathematician, Euclid, who lived around 300 BC was an important figure in geometry and trigonometry. He is most renowned for Euclid’s Elements, a very careful study in proving more complex geometric properties from simpler principles. Although there is some doubt about the originality of the concepts contained within Elements, they’re influential in how we think about proofs and geometry today; indeed, it has been said that the Elements have “exercised an influence upon the human mind greater than that of any other work except the Bible.