Stock Photo - Louis Pasteur, French chemist, 1895. Pasteur (1822-1895) developed the pasteurisation process which kills pathogens in milk, wine and foods, and he produced vaccines against anthrax and rabies. In 1884 he was appointed Professor of Chemistry at the University of Lille where he researched the reasons why some alcohols turn sour, discovering in the process, that by heating liquid to a certain temperature, the bacteria were killed. Popular tribute from Le Petit Journal, Paris, at the time of his death.

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