Antony Van Leeuwenhoek discovers bacteria, observed with the microscope.

In 1676, Antonie van Leeuwenhoek discovered bacteria and called them "animalcules," assigning them to the class Vermes of the Animalia.

It was then that scholars discovered spermatozoa, bacteria, infusoria and the diversity of microscopic life.

Ignaz Semmelweis (1818 - 1865) was a Hungarian doctor who discovered bacteria, disease and infection.

Discovered native bacteria, Indibacter alkaliphilus used to generate Enzymes and Bio-molecules in the Industrial Biotechnology sector.

The department's antiquated system for discovering and controlling bacteria in raw products is a continuing scandal.

Scientists discover live bacteria in the subglacial Antarctic Lake Whillans.

It was Anton van Leeuwenhoek (1632-1723) who discovered bacteria and saw the cell structure of plants.

Thus Leeuwenhoek discovered oral bacteria or "animalcules," the name he gave bacteria in general.

In this way Galileo Galilei studied the motions of the planets and Louis Pasteur discovered bacteria.