Dec. 10, 1626: Measurement Man Meets the Measure of His Days

1626: Edmund Gunter dies. He invented tools for computation, navigation and surveying, and devised the trigonometry concepts of cosine and cotangent. Gunter was born sometime in 1581 in Hertfordshire, England. He graduated from Christ Church, Oxford University, in 1603, received a divinity degree in 1615, and was rector of churches in Oxford and London. Gunter [...]