Why do we refer to Isaac Newton as 'sir'?

Thus, if you had been personally introduced to Newton after he was knighted in 1705, you should have called him "Sir Isaac". If you had written him a letter, you would have posted it to "Sir Isaac Newton". Personally, I think that referring to him now as "Sir" is silly. read more

Because he was knighted by Queen Anne in 1705—he was about 63 years old at the time. From what I recall reading, despite his scientific work and services to the Royal Mint, these were not taken into consideration for his knighthood. read more

Isaac Newton was born in 1642, the year of Galileo's death, and from a young age showed interest in formal education — not a given in that era — rather than farming. When the black plague closed Cambridge University, where he was a student, for two years starting in 1665, he spent the long months locked up at home studying complex mathematics, physics and optics. read more

Sir Isaac Newton PRS FRS (/ ˈ nj uː t ən /; 25 December 1642 – 20 March 1726/27) was an English mathematician, astronomer, theologian, author and physicist (described in his own day as a"natural philosopher") who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution. read more

Isaac Newton laid the blueprints for his three laws of motion, still recited by physics students, in 1666. Credit: Library of Congress When little baby Isaac was born in a Lilliputian English village, premature and small enough to fit into a quart pot, he wasn't expected to survive. read more

Sir Isaac Newton was born on January 4, 1643 and died on March 31,1727. Sir Isaac Newton was 84 years old at the time of death andwould be 371 years old today. read more