History of Microscopes and Cell Theory By agaspar03 Period: Jan 1, 1200 to Jan 1, 2000 History of Lenses and Cell Theory Jan 1, 1285 Invention of eyeglasses (spectacles) Glasses Jan 1, 1600 1st microscope invented Lens on Leewenhoek Jan 1, 1608 Invention of the telescope Galileo's Telescope Jan 1, 1609 Galileo invents his own telescope with concave and vonvex lenses Period: Jan 1, 1632 to Jan 1, 1723 Lifespan of Antoni van Leewenhoek Period: Jan 1, 1635 to Jan 1, 1703 Lifespan of Robert Hooke Jan 1, 1665 The book "Micrographia" is published Cells: The Functional Units of Organisms The book had sketches of the cork sells that Robert Hooke observed Jan 1, 1678 First sighting of cells through a microscope Cell Theory Antoni Van Leewenhoek said the he saw "little animals" while looking through a microscope around this time Period: Jan 1, 1804 to Jan 1, 1881 Lifespan of Matthias Jakob Schleiden Period: Jan 1, 1810 to Jan 1, 1882 Lifespan of Theodor Schwann Period: Jan 1, 1821 to Jan 1, 1902 Lifespan of Rudolf Virchow Jan 1, 1839 Theodor Schwann concluded that "all cells are made up of living things" Theodor Schwann Jan 1, 1839 Cells are accepted as the basic units of life Animal Cell Jan 1, 1858 Rudolf Virchow prosposed that 'all cells are made up of pre-exisitng cells" Jan 1, 1879 Mitosis is dicovered by Walther Flemming Cycle of Mitosis Jan 1, 1880 Microscopes with lamp filters were created Jan 1, 1931 The first electron microscope is constructed by Max Knoll and Ernst Ruska The Paper Project- History of the Microscope