- Robert Hooke

  • - Robert Hooke

    - Robert Hooke
    • Robert Hooke:in 1665/ Used his compound microscope to discover cells and corks. At the time he developed the best microscope available.
  • - Anton Van Leeuwenhoek

    - Anton Van Leeuwenhoek
    He knew how to make simple microscopes which today would be considered magnifying classes. He found by scraping his teeth that there are very little living animalcules. He was also one of the first people to observe and record microbes.
  • Matthias Jakob Schleiden

    Matthias Jakob Schleiden
    1838/ He discovered all plants are made of cells.
  • Theodor Schwann

    Theodor Schwann
    1839/ He studied animals, he agreed with schleiden that plants had cells but he also figured out not only plants have cells but animals haves cells two. Together they they came up with the cell theory. The cell theory is that all living organisms are made up of cells.
  • Ignaz Philipp Semmelweiss

    Ignaz Philipp Semmelweiss
    1840s/ He found out that washing your hands reduces the risk of infectious diseases by removing germs.
  • Karl Theodor Ernst Von Siebold

    Karl Theodor Ernst Von Siebold
    1845/ he suggested that microbes were also made up of cells or one cell. He believed that living things were made up of many cells like animals were built out of single-celled microbes.
  • Rudolf Carl Virchow

    Rudolf Carl Virchow
    1850s/ he believed that all living organisms begin as a single cell. Most microbes are made up of a single cell.
  • Florence Nightingale

    Florence Nightingale
    1860/ She was one of the first to recognize that cleanliness was important in preventing disease. She improved sanitary practices in military hospitals and this help fewer soldiers die from infections from battle injuries.
  • Louis Pasteur

    Louis Pasteur
    1864/ He discovered that different microbes caused different kinds of spoiling. He found out that heat can kill many of these microbes. in 1865/ He found out that germs could cause infectious diseases and were spread by people. This idea was based on the germ theory of disease.
  • Robert Koch

    Robert Koch
    1876/ He developed a way to prove that a disease was killing cattle. To prove that this disease was killing cattle he had to take the disease and inject it into mice and the other two mice he did not inject. the two mice that he injected died and the other two lived.
  • Joseph Lister

    Joseph Lister
    1876/ he began to clean his surgical instruments and he also spread the air with cleaning stuff, made sure they washed their hands, and wash their aprons. Because he made this change there was a 15% drop to death rate for surgery.
  • William Stewart Halsted

    William Stewart Halsted
    1890/ He wanted to stop the spread of these germs that are killing patients. So he wanted to stop them from spreading in the first place so he used rubber gloves. To keep the gloves clean he would use chemicals to clean them.