Which scientist(s)is (are)given credit for making the first record of microorganisms from observations with his (their)microscope?

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Antony van Leeuwenhoek is credited with making the first record of microorganisms (which he called "animalcules") through his observations with his microscope in the 17th century. Robert Hooke was the first to describe cells, but did not observe microorganisms. Mathias Schleiden and Theodore Schwann are credited with developing the cell theory. Louis Pasteur is known for his work on fermentation and pasteurization, as well as developing vaccines. Rudolf Virchow is known for his work on cell pathology and his theory of biogenesis.

Which Scientist(s)is (Are)given Credit for Making the First Record of Microorganisms