The year 1675 in science and technology involved some significant events. Quick Facts List of years in science (table) ... List of years in science (table) … 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 … Art Archaeology Architecture Literature Music Philosophy Science +... vte Close Astronomy March 4 – John Flamsteed appointed as "astronomical observator", in effect, the first Astronomer Royal of England.[1][2] August 10 – King Charles II of England places the foundation stone of the Royal Greenwich Observatory near London. Giovanni Cassini discovers the Cassini Division in the rings of Saturn. Exploration April – The Antarctic Convergence is first crossed by English merchant Anthony de la Roché, who lands on South Georgia.[3] Mathematics October 29 – German polymath Gottfried Leibniz makes the first use of the long s (∫) as a symbol of the integral in calculus. November 11 – Leibniz uses infinitesimal calculus for the first time to find the area under the graph of the function y=f(x). Physiology and medicine Antonie van Leeuwenhoek begins to use a microscope for observing human tissues and liquids. Technology February 25 – Netherlands scientist Christiaan Huygens files drawings of his invention of the balance spring, the key component to the accuracy of portable clocks and pocket watches, in a letter to the Journal des Sçavants. Births February 28 – Guillaume Delisle, French cartographer (died 1726) Deaths October – James Gregory, Scottish mathematician and astronomer (born 1638) October 27 – Gilles de Roberval, French mathematician (born 1602) November 11 – Thomas Willis, English physician (born 1621) approx. date – John Jonston, Polish naturalist and physician (born 1603) References [1]Palmer, Alan; Palmer, Veronica (1992). The Chronology of British History. London: Century Ltd. pp. 191–192. ISBN 0-7126-5616-2. [2]Willmoth, Frances (2004). "Flamsteed, John (1646–1719)". Oxford Dictionary of National Biography. Oxford University Press. Retrieved 2011-02-04. (subscription or UK public library membership required) [3]Headland, Robert (1992). The Island of South Georgia (2nd ed.). Cambridge University Press. ISBN 0-521-42474-7. Wikiwand - on Seamless Wikipedia browsing. On steroids.