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Pricing
1590
% complete
made the first microscope by placing two lenses in a tube.
1665
% complete
discovered cells in a piece of cork
1674
% complete
was the first person to observe and describe a single celled organism which he called "animalcules"
1824
% complete
He realized that new cells are created and formed within old cells, as they divide.
1831
% complete
discoverd the cell nucleaus
1839
% complete
He concluded that all animals are made of cells
1938
% complete
The inventor of the electron microscope
1953
% complete
discovered the molecular structure of DNA.