Isaac Newton was born on January 4, 1643 in Woolsthorpe-by-Colsterworth, United Kingdom. His father was Isaac Newton Sr. and his mother was Hannah Ayscough. Isaac's father was a successful farmer but he died three month before Isaac was born. Isaac's mother had to raise. His mother later remarried to a wealthy man, and left Isaac with his grandparents. Isaac did not have a very good childhood which lead to anger and mental illness in his future.