| http://www.w3.org/ns/prov#value | - In 1676, Antonie van Leeuwenhoek observed bacteria and other microorganisms in water, the first bacteria observed by man, using a single-lens microscope of his own design. [11] [18] Anton van Leeuwenhoek (1632???1723) is credited with bringing the microscope to the attention of biologists, even though simple magnifying lenses were already being produced in the 16th century.
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