Robert Koch discovered Bacillus Anthracis, the bacterium for the deadly disease, Anthrax, in 1877. Robert Koch grew the bacterium into a pure culture, demonstrated its ability to form endospores, and produced experimental Anthrax by injecting it into animals. Bacillus Anthracis was the first bacterium shown to be the cause of a disease. Bacillus Anthracis is a very large, gram positive sporeforming rod. The organism is cultivated on ordinary nutrient medium and grows best aerobically, but can also multiply under anaerobic conditions. The disea ....