Answer:
Robert Koch identified the cause of anthrax.
Step-by-step explanation:
Robert Koch was a German doctor who is also famous as the founder of modern bacteriology. Robert Koch was used to conduct experiments to find the causative bacteria responsible for some disease. Hence, he proved that Bacillus anthracis causes a fatal disease named as Anthrax. He extracted this bacterium from a sheep's tissue who died of anthrax. Then, he injected this bacterium into 20 generations of mouse to confirm that this bacterium is responsible for causing anthrax.