Abigail's Cell Theory Timeline By abigailfogle Jan 1, 1590 Zacharias Jansen invented the first truly compound microscope Jan 1, 1624 Jan Baptist van Helmont accpeted the ideas pf spontaneous generation (making something out of nothing) Jan 1, 1655 Robert Hooke observed a cork and introduced the word "cell" Jan 1, 1683 Anton van Leeuwwenhoek discovers bacteria Jan 1, 1802 Lorenz Oken came up with a new system of animal classification and demonstrated the path of evolution Jan 1, 1830 Robert Brown published his observations reporting the discovery of widespread occurrence of nuclei on cells Jan 1, 1838 Matthias Schleiden discover plants were made of cells Jan 1, 1839 Theodor Schwann discovered that all animals are made of cells Jan 1, 1840 Albrecht von Roelliker discovered sperm and eggs are also cells Jan 1, 1855 Rudolf Virchow stated that all living things come from other living things Jan 1, 1862 Louis Pasteur disproves spontaneous generation with the process of pasteurization Mar 2, 2022 Aristotle experimented with numerous dissections
