Biotech Timeline By mirchandani Jan 24, 1600 Microscope Invention Robert Hooke discovered an instrument that we still use today! Period: Jan 24, 1600 to Jan 24, 2014 Biotechnology Timeline Jan 24, 1675 Bacteria Discovered Leeuwenhoek discovered Bacteria. Jan 24, 1863 Mendel developed a Theory of Heredity Jan 24, 1870 Pasteur devloped the importance of Refrigeration to Protect from Disease! Jan 24, 1950 Scientists were First Able to Grow a Plant from Genetic Code Jan 24, 1953 Watson and Crick Published a Model of DNA Jan 24, 1970 Embryo Transfer became Widespread Jan 24, 1972 Recombinant DNA by Paul Berg Paul Berg made the discovery of Recombinant DNA!