~ 1843 - 1910
Robert Koch was a German physician and microbiologist, born on December 11, 1843, and known for his pioneering work in bacteriology. He is best recognized for discovering the causative agents of tuberculosis, cholera, and anthrax, and for developing Koch's postulates, which laid the foundation for modern microbiology and infectious disease research. His contributions significantly advanced the understanding of infectious diseases and earned him the Nobel Prize in Physiology or Medicine in 1905.