Gene sequencing, from which scientists can gather hereditary data of organisms, has revealed that the Black Death, often referred to as The Plague, which reduced the world’s total population by about 100 million, originated from China over 2000 years ago, scientists from several countries wrote in the medical journal Nature Genetics. Genome sequencing has allowed the researchers to reconstruct plague pandemics from the Black Death to the late 1800s.Black Death and The Plague – the plague is an infectious disease caused by a bacterium called Yersinia pestis. The Black Death is one huge plague event (pandemic) in history. The Black...