Born: 26 December 1642, Woolsthorpe by Colsterworth, Lincolnshire, England

Died: 20 March 1726, Kensington, Middlesex, England

Sir Isaac Newton was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author.

Legend has it that Isaac Newton formulated gravitational theory in 1665 or 1666 after watching an apple fall and asking why the apple fell straight down, rather than sideways or even upward.