During the laying of the tunnel in London during the construction of Crossrail railway builders stumbled upon a massive cemetery of the victims of the bubonic plague, which is also called the "Black Death", reports BBC.
Exactly how much remains in the burial is still unknown, but now workers have already removed 13 skeletons, bones, which are now being studied by scientists.
It is assumed that all the victims were killed at an early stage of disease spread, which in the XIV century in England claimed the lives of hundreds of thousands of people. At the beginning of the epidemic of bubonic plague victims' bodies were dumped into mass graves mixed.
Researchers believe that the DNA analysis of buried bodies enable them to better understand the nature of the spread of bubonic plague in the British Isles.