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  Hans and Zacharias Janssen creator the first compound mircoscope
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  The first cell was discovered and observed by Robert Hooke. He examined very thin slices of bottle cork and saw a multitude of tiny pores.
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  Dutch sciencist Anton van Leeuwenhoek observed a living cell in a pond.
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  Anton van Leeuwenhoek made many more discoveries after his first and published it to the Royal Soceity
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  Robert Brown has observed the centre of a cell
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  Matthias Jakob Schleiden discovered that all plant tissue was compossed of cell and was the basic build block
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  Theodor Schwann stated that all living matter was made of cells. He also stated that they are the basic unit of life
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  Rudolf Virchow added the 3rd part of the theory that all cells come from pre exsiting cells
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  Charles Darwin published the orgin of species which explained the unti and heredity of various species
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  Walther Fleming discovered chromosomes by using dyes to stain cells
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  Hugo de Vries created label a mutation when experimenting with cells
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  Edouard van Beneden stated that all organisms in the same species have the same number of chromosomes