Sir Isaac Newton
Sir Isaac Newton was born on Christmas Day in 1642; however, with the calendar changes of the 19th century, that date became January 4, 1643. The January 4th date is commonly used today? Isaac Newton is often ranked 1-2 with Albert Einstein among history?s leading physicists? Isaac Newton held the Lucasian Chair of Mathematics at Cambridge ? a post later held by Stephen Hawking? Isaac Newton was good friends with astronomer Edmond Halley, of Halley?s Comet fame? Isaac Newton was born just about one year after the death of Galileo.
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