Example image of eyePlorer eyePlorer map for 'John Theophilus Desaguliers': 1683 1744 February 29 France March 13 Natural philosophy Royal Society Copley Medal Isaac Newton Planetarium England La Rochelle Edict of Fontainebleau Huguenot Christ Church, Oxford Hertford College, Oxford John Keill George I of Great Britain George II of Great Britain London Safety valve Steam engine Thomas Savery Freemasonry Premier Grand Lodge of England Church of England Benefice James Brydges, 1st Duke of Chandos Middlesex Whitchurch, London Canons Park Cannons (house) George Frideric Handel York Buildings Company Edme Mariotte National Portrait Gallery (London) Royal Arsenal Music for the Royal Fireworks Covent Garden Gout Savoy Chapel Portable Document Format Babel Fish (website) Loughborough University University College London 1734 in science 1736 in science George Payne 1741 in science English inventions and discoveries