Everything you know about the Black Death is wrong, say the bones.

Don Walker, a human osteologist with the Museum of London, poses with the skull of one of the skeletons found by construction workers under central London’s Charterhouse Square on Wednesday, March 26, 2014. Twenty-five skeletons were uncovered last year during work on Crossrail, a new rail line that’s boring 13 miles (21 kilometers) of tunnels under the heart of the city. Archaeologists immediately suspected the bones came from a cemetery for victims of the bubonic plague that ravaged Europe in the 14th century. The Black Death, as the plague was called, is thought to have killed at least 75 million people, including more than half of Britain’s population. (AP Photo/Lefteris Pitarakis)

In the autumn of 1348, a central Asian sickness arrived in London and quickly dispatched 60 percent of the city’s population. Within a decade, in what’s believed to be the worst human calamity of all time, something like 25 million Europeans were dead. And when they died, the secrets of their demise disappeared with them.

Until now.

On Sunday, London scientists who’d studied 25 skeletons discovered in a new rail line said everything we’d thought about the bubonic plague — what caused it, what kind of disease it was, its strength — was wrong. Most of the ensuing coverage focused on the finding that the disease wasn’t likely spread by rats’ fleas, as has been taught in every high school in the West, but had actually been airborne.