Sir Isaac Newton was born, 25 December 1642 - 20 March 1727 by the Julian calendar in use in England at the time, or 4 January 1643 - 31 March 1727 by the current international Gregorian calendar.
Isxaaq Newton (Sir Isaac Newton) wuxuu noolaa intii u dhexaysay 25 Diseembar 1642 - 20 Marso 1727, sanad qaysar xilligaas ama 4 Jannaayo 1643 - 31 Marso 1727 sanad gerigooriyaal.