On 9 January 1909, British polar explorer Ernest Shackleton and three companions reached a new Farthest South latitude of 88° 23′ S, a point only 180 km from the South Pole and were forced to return to McMurdo Sound in a race against starvation.
On December 11, 1843, Robert Koch, the founder of modern bacteriology, was born. He is known for his role in identifying the specific causative agents of tuberculosis, cholera, and anthrax and for giving experimental support for the concept of infectious disease. As a result of his groundbreaking research on tuberculosis, Koch received the Nobel Prize in Physiology or Medicine in 1905.