microscope By game freak Period: Feb 3, 1500 to Jun 10, 2012 History of Microscope Apr 7, 1500 Glass lenses developed Jan 1, 1600 first light microscope made in Holland a tube with two lenses and up to 9x Dec 25, 1625 Galileo made the first compound microscope Apr 20, 1665 Robbert Hooke dicovers cells May 16, 1675 Antonie van Leevwenhoek able to observe blood and upto 270x Apr 15, 1893 August Kohler developed and illuminater Sep 17, 1931 First electron microscope was made Apr 26, 1935 Scanning electron microscope discovered Jun 15, 1950 American Charlse Spencer makes better microscope 1250x with normal light and with blue light up to 5000x Oct 7, 1966 high voltage electron microscope