Cells By Ivannajadra Jan 1, 1590 Invention of the microscope Jan 1, 1665 Hooke found cells. Jan 1, 1673 Anton Van Leeuwenhoek found bacteria. Jan 1, 1831 Robert Brown found that nucelos was really important. Jan 1, 1838 Mathhias Schleinden concluded that all plants have cells. Jan 1, 1855 Louis Pateur disproves spontaneous generation. Jan 1, 1860 Walter Flaming stain cells with dye to make them easier to see in the microscopre Jan 1, 1889 Theodor Schwann concluded that all animals are made up of cells Jan 1, 1931 The invention of the electron microscope (easier to see) Jan 1, 1953 James Watson and Francis Crick show the structure of the DNA. Jan 1, 1977 Scientifics discovered that prokaryotes are really made disaffect groups of bacteria called archaea. Jan 1, 1997 Scottish scientific create Dolly, a clone of genetic copy of another sheep