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During the 1600s, Zacharias Janssen, discovered the first compund microscope. It later then became the popular item that everyone wanted.
In 1674 a dutchman named Anton Van Leeuwenhoek, was the first ever person to find real living cells. He found bacteria while looking at his dental scrapings.
Robert Hooke loved every aspect of science this is including chemistry, physics, and biology. One day he decided to look through a microscope to see a cork. And what he saw was small chambers that reminded him of cells.
In the 1800s a german scientist named Matthias Schledien, was a botanist, who likes to study about plants under the microscope.One day he came to a conclusion that all plants were made out of cells and their products.
A cell theory is where all living organisms are composed of one or more cells. All plants were made out of cells and their products. The new cells are created by old cells dividing into two. Cells are the basic building of life.
A german scientist named Theador Schwann, also found out that all anmials are made out of cells just like Matthias.
Another scientist who helped in the cell theory was Rudolph Virchow, who said that cells comes from pre existing cells. This stopped the argument that Matthias and Theador had about where did cells comes from.
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