Grantham and eminent past students. Britain's first female Prime Minister, Margaret Thatcher, attended Kesteven and Grantham, and Isaac Newton famously attended The King's. Both have remained single-sex up to the age of 16. In 1970, Kesteven County Council (based in Sleaford) announced plans to turn the grammar schools into co-educational comprehensives for ages of 11–16 and leave Grantham College the only sixth form for the town. Later it was proposed to create two sixth-form colleges from one of the grammar schools. Other parts of Kesteven became comprehensive but responsibility for education passed to Lincolnshire under the local government reorganization of 1974,
Early life of Isaac Newton Early life of Isaac Newton The following article is part of a biography of Sir Isaac Newton, the English mathematician and scientist, author of the "Principia". It portrays the years after Newton's birth in 1642, his education, as well as his early scientific contributions, before the writing of his main work, the "Principia Mathematica", in 1685. Isaac Newton was born on Christmas Day, 25 December 1642 Old Style (which was 4 January 1643 on the Gregorian calendar, which is now used) at Woolsthorpe Manor in Woolsthorpe-by-Colsterworth, a hamlet in the county of Lincolnshire. (At the time of Newton's birth, England