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Who was the first person to see bacteria with a microscope?
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Antonie van Leeuwenhoek was the first person to see bacteria with a microscope. He discovered the bacteria by using a compound called methylene blue. He found that when he placed a drop of water on a piece of paper, he could see the bacteria with a microscope. He was the first person to use a compound to stain bacteria, and this discovery led to the development of the field of microbiology.