From the collapse of Roman power to the spread of Christianity, most of what we know about the lives of people across Europe comes from traces of their deaths. This is because written sources are limited, and in many areas archaeologists have only found a few farmsteads and villages. But thousands of grave fields have been excavated, adding up to tens of thousands of burials. Buried along with the human remains, archaeologists find traces of costumes and often possessions, including knives, swords, shields, spears and ornate brooches of bronze and silver. There are glass beads strung as neckla…