Are the Black Death and Bubonic plague same disease?

The Black Death and Bubonic Plague refer to the same disease, caused by the bacterium Yersinia pestis, which is primarily transmitted by infected fleas. The Black Death was the name given to the devastating pandemic that swept across Europe and Asia in the 14th century. It is estimated to have caused the death of 75- 200 million people. Today, the Bubonic plague term is more commonly used to describe the disease.