Black Death

This ancient strain was less contagious and not as deadly as its medieval version

A pair of 3,800-year-old skeletons buried together in Russia test positive for a strain of the plague-causing bacterium Yersinia pestis  

If this is the case, the discovery would show that the disease had been around for much longer than we think

Each time Sharon DeWitte takes a 3-foot by 1-foot archival box off the shelf at the Museum of London she hopes it will be heavy....