French chemist and microbiologist.

Louis Pasteur was born on December 27, 1822, in Dole, located in the Jura region of France.
Pasteur was skilled at drawing and painting. He earned his Bachelor of Arts degree (1840) and Bachelor of Science degree (1842) at the Royal College of Besançon and a doctorate (1847) from the École Normale in Paris.

In 1848, he became a professor of chemistry at the University of Strasbourg, where he met Marie Laurent, the daughter of the university's rector. They wed on May 29, 1849, and had five children, though only two survived childhood.

In the early 1870s Pasteur had already acquired considerable renown and respect in France, and in 1873 he was elected as an associate member of the Académie de Médecine. Nonetheless, the medical establishment was reluctant to accept his germ theory of disease, primarily because it originated from a chemist. However, during the next decade, Pasteur developed the overall principle of vaccination and contributed to the foundation of immunology.

Pasteur’s first important discovery in the study of vaccination came in 1879 and concerned a disease called chicken cholera.

He died on September 28, 1895 due to a paralysis.

I admire him as one of most important founders of medical microbiology and his contributions to science, technology and medicine are unprecedented. Pasteur has been a pioneered the study of molecular asymmetry; discovered that microorganisms cause fermentation and disease; originated the process of pasteurization; saved the beer, wine, and silk industries in France; and developed vaccines against anthrax and rabies.