Microscope Timeline By ghalgirl 1560 Zacharias Janssen is born C. Period: 1585 to 1902 Microscope Timeline 1590 Invention of the microscope 1632 Zacharias Janssen died Oct 24, 1632 Anton Van Leeuwenhoek was born 1660 Hookes Law was invented 1665 Robert Hooke theory 1665 Robert Hooke discovered cells Mar 3, 1703 Robert Hooke died Apr 5, 1804 Matthias Jakob Schleiden was born Dec 7, 1810 Theodor Schwann was born Oct 13, 1821 Rudolf Virchow was born 1838 The Cell Theory was co-founded by Matthias Jakob Schleiden Period: 1838 to 1839 Schwann Cells cells were discovered 1855 rudolf virchow contributed to the cell theory 1861 biogenesis was discovered