Bubonic plague has had a major impact on the history of the world. Caused by the bacterium, Yersinia pestis, and transmitted by fleas often found on rats, bubonic plague has killed over 50 million people over the centuries. Burrowing rodent populations across the world keep the disease present in the world today. Outbreaks, though often small, still occur in many places. The use of antibiotics and increased scientific knowledge first gained in the 1890s have reduced the destruction of plague outbreaks. In Medieval times, with the unknowing help of humans, bubonic plague exploded into a pandemic. Known as the ³Black Death², it decimated Europe in 1350, killing 1/3 of the population. It disrupted government, trade, and commerce. It reshaped people¹s perspectives on life and Christianity, and found expression in many works of art. Bubonic plague¹s influence and effects have shaped events of the p...