Iron Age skeletons found under bridge may have been hit by a tsunami

For decades, scientists have wondered about the history of 20 people, as well as a handful of farm animals, who seemingly drowned 2000 years ago in a Swiss river. One idea is that these individuals were sacrificed from a bridge, which later collapsed. But new evidence supports the notion that, for at least some of them, their demise – along with the bridge’s – was due to a natural disaster.

In 1965, archaeologists uncovered…