The practice of drilling holes into skulls goes back millennia.

STONES, BONES, AND WRECKS
Every year, billions of dollars in ancient artifacts and other cultural objects are looted and sold around the world. A new project is training dogs to sniff them out.
The bones were found near Bellamy's ship, the Whydah, which wrecked off the coast of Massachusetts in 1717.
In the late 9th century, Vikings across Scandinavia banded together to invade England.
And you can buy some of it.
The ship arrived in Alabama in 1859 in defiance of a law that prohibited importing slaves to the U.S. To hide the evidence of its illegal venture, its captain burned and sunk the ship, and its wreck has been lost to history. Until now.
Haifa University researchers pieced together more than 60 tiny parchment fragments to decipher the document.
The British palace's limestone is riddled with mineralized microbes from 200 million years ago.
Hemings learned the art of French cooking in Paris and brought haute cuisine to America.
Europe’s largest engineering project uncovered countless historic treasures, ranging from bones to Tudor bowling balls.
An estimated 35,000 German soldiers died in Estonia during World War II while fighting Soviet troops.