Robert Koch is Known as the Father of Bacteriology
Robert Koch was notable for his discovery of the bacterium Bacillus anthracisin 1876 and such had launched the new scientific field of bacteriology.
His discoveries about microscopic techniques and different pathogenic bacteria like the Bacillus anthracis, Staphylococcus, Mycobacterium tuberculosis, Vibrio cholerae, etc. ensued the “golden age” of scientific discovery.
Robert Koch made two important developments in microscopy; he was the first to use an oil immersion lens and a condenser that enabled smaller objects to be seen. In addition, he was also the first to effectively use photography (microphotography) for microscopic observation. He introduced the "bedrock methods" of bacterial staining using methylene blue and Bismarck (Vesuvin) brown dye.
Koch's booklet published in 1881 titled "Zur Untersuchung von Pathogenen Organismen" (Methods for the Study of Pathogenic Organisms) has been known as the "Bible of Bacteriology." In it he described a novel method of using glass slide with agar to grow bacteria. The method involved pouring a liquid agar on to the glass slide and then spreading a thin layer of gelatin over.
Robert Koch is widely known for his work with anthrax, discovering the causative agent of the fatal disease to beBacillus anthracis.
In 1882, he published his findings on tuberculosis, in which he reported the causative agent of the disease to be the slow-growing Mycobacterium tuberculosis.
He also contributed in Tuberculosis treatment and tuberculin
During his time as government advisor, Koch published a report on how he discovered and experimentally showed tuberculosis bacterium as the pathogen of tuberculosis. He described the importance of pure cultures in isolating disease-causing organisms and explained the necessary steps to obtain these cultures, methods which are summarized in Koch's four postulates.