<human>:  When did Louis Pasteur (scientist) die?
<bot>: Louis Pasteur was born on December 27, 1822 and died on September 28, 1895. He was a French chemist and microbiologist who made many contributions to the fields of microbiology, immunology, and vaccinology. He is credited with the discovery of pasteurization and the pasteurization process is still used today to treat milk to make it safer to drink. He also discovered the first vaccine against rabies and is considered the father of microbiology.