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  invented by Zaharias Jansen
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  Jansen created the first microscope which helped scientist later look at cells
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  Agreed with spontainious Generation which later scientists proved wrong
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  Discoverd cells which helped discover how things we made
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  made the simple microoscope and his experements helped them prove spontainious generation wrong by helping scientist look at cells
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  helped spread cell theory and discovered infusoria which helped look at bones and tissue
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  Discovered that all cells have a nucules which helped cell theory
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  looked at the structer and growth of plants
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  Helped create thoughts of spontanious generation so they could be proved wrong
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  Realized that percells and egg cell are cells so it shows that every living thing has cells so it helps cell theory
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  Came up with the theory that all living things come from living things and cells which helped prove spontanious generation wrong
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  used cell theory to explain the effects ofdiseases on the human body
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  Came up with spontanious generation