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Microscope Invented
Janssen inveted microscope. We wouldn't be able to see cells without it. -
Cells Dicovered
Robert Hooke first talked about cells while observing cork -
Improved microscope lenses
Antoni van Leeuwenhoek learned to grind lenses and to assemble them into simple microscopes. -
Bacteria discovered
Anton Van Leeuwenhoek discovered and discussed about bacteria -
Exposing soup to air
John Needham, a Scottish clergy man, showed that soup that had been exposed to the air contained many micro organisms. -
Fixing soup expirements
Lazzaro Spallanzani, an italian abbot and biologist, did quite a few expirements on Needham's work over the soup and air. He determined that soup in a sealed container was sterile and that micro organisms that caused the soup to spoil had entered from the air -
Cell nucleus discovered
Robert Brown discovered cell nucleus -
Cell theory first discussed
In 1838, cell theory was first enunciated but it was not yet the cell theory. -
Organisms composed of cells
Schwahnn proposed that all organisms are composed of cells.Together with Matthias Schleiden he formed the cell theory of life.Schwahnn also discovered the cells, now known as Schwann cells, that form a sheath surrounding nerve axons and conducted expirements that helped disprove the theory of spontaneous generation. -
Cell theory created
Theodor Schwann and Matthias Schleiden created what is called the cell theory.The cell theory states that all living things are made up of one or more cells. -
Leukemia cells
Rudolph Virchow was the one to recognize leumekia cells
