London's Lost Black Death Mass Grave Discovered

Skeletons found last year during excavations for London's Crossrail project were found to have plague bacteria.

London's Lost Black Death Mass Grave Discovered

Scientists in the United Kingdom have lifted the shroud on one of the most lethal catastrophes in recorded history, announcing they've found a long-lost mass grave from London's Black Death.

"The depth they are and the type of pottery we're getting strongly suggests that they're part of the Black Death cemetery of that mid-14th century." (Via BBC)

Workers on London's Crossrail project, which burrows under the heart of the city to construct railway tunnels, unearthed 25 skeletons last year. Tests have now confirmed those skeletons carried plague bacteria. (Via YouTube / Crossrail Project)

London's bubonic plague outbreak in 1348 and 1349 killed 6 out of every 10 people in the city in less than a year, and you probably learned in school that rats and their disease-carrying fleas were to blame. Well, the new grave site could upend that theory.

The DNA of the 14th-century plague bacteria closely matches that of a recent outbreak in Madagascar that killed 60 people. That outbreak was pneumonic, meaning it was passed not by rats but by coughing and sneezing. (Via The Disease Daily)

Some scientists now believe the medieval plague spread the same way, claiming that's the only way the disease could have infected so many people so quickly.

One proponent of the theory told The Guardian"As an explanation for the Black Death in its own right, [rat fleas] simply isn't good enough. It cannot spread fast enough ... to cause the huge number of cases that we saw during the Black Death."

Crossrail is Europe's largest infrastructure project and has already unearthed more than 10,000 archeological finds. Workers have already found more skeletons at the 14th-century grave site using sonar.