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Hans and Zacharias Janssen
Hans and Zacharias Janssen were the inventors of the first compound microscope. -
Robert Hooke
English physicist Robert Hooke looked at a sliver of cork through a microscope lens and noticed some little pores or cells in it. Robert Hooke believed the cells had served as containers for the threads or juices of the once-living cork tree. Hooke was also the first person to use the word "cell" to identify these microscopic structures when he was describing the cork. -
Anton Van Leeuwenhoek
Anton Van Leeuwenhoek was the first to see and describe things such as bacteria or blood cells etc. -
Anton Van Leeuwenhoek
He marked this discovery of bacteria by looking at the plaque on teeth. -
John Dalton
John Dalton figured that matter is made up of atoms that cannot be destroyed or divided. -
Robert Brown
Robert Brown discovered the cell nucleus. -
Matthias Schleiden
Theodor Schwann and Matthias Jakob Schleiden created what is now formally known as the cell theory. This cell theory states that all living things are made up of one or more cells. -
Rudolf Virchow
Rudolf Virchow stated that all diseases involve changes in normal cells.