What is Christopher Wren?
{{Infobox scientist |name = Sir Christopher Wren |image = Christopher_Wren_by_Godfrey_Kneller_1711.jpg |image_size = |caption = Wren in a portrait by [[Godfrey Kneller]] (1711) |birth_date = {{OldStyleDateDY|30 October|1632|20 October}} |birth_place = [[East Knoyle]], [[Wiltshire]], England |death_date = {{OldStyleDateDY|8 March|1723|25 February, 1722}}<br>(aged 90) |death_place = [[St James's]], [[London]], England |nationality = [[Kingdom of England|English]] {{small|(later [[Kingdom of Great Britain|British]])}} |field = [[Architecture]], [[physics]], [[astronomy]] and [[mathematics]] |academic_advisors = [[William Oughtred]] |notable_students = |alma_mater = [[Wadham College]], [[University of Oxford|Oxford]] |known_for = Designer of 54 [[List of Christopher Wren churches in London|churches]] including [[St Paul's Cathedral]], as well as many secular buildings of note in London after the [[Great Fire of London|Great Fire]] |footnotes = }} '''Sir Christopher Wren''' (20 October 1632 – 25 February 1723) was a [[17th century]] [[English people|English]] architect, [[design]]er, [[astronomer]] and [[Geometry|geometer]]. He designed 51 churches in [[London]] after the [[Great Fire of London]], including [[St. Paul's Cathedral]].<ref>Tinniswood, Adrian 2001. ''His Invention so furtile: the Life of Christopher Wren''. Oxford University Press. {{ISBN|0-19-514989-0}}</ref><ref>Vaughan Hart. 1995. ''St Paul's Cathedral: Sir Christopher Wren''. Phaidon, London. {{ISBN|0714829986}}</ref> Wren was born on 20 October 1632 in East Knoyle, Wiltshire, [[England]]. He was educated at [[Westminster School]] and [[Oxford University]]. He showed an early talent for [[mathematics]]. He invented an instrument for writing in the dark and a [[pneumatic]] machine. In 1657, Wren was appointed professor of [[astronomy]] at [[Gresham College]] in London. Four years later, he was appointed professor of [[astronomy]] at Oxford. In 1662, he was one of the founding members of the [[Royal Society]]. Wren developed an interest in [[architect