This 700-Year-Old Ring Was Used to Poison Kings

Should you have happened to find yourself dining with Bulgarian royalty 700 years ago and the wine tasted a bit off, you would have been smart to put the goblet down. Bulgarian archaeologists have just discovered a medieval bronze ring explicitly designed to poison political foes—in the most discreet way possible. » 8/22/13 12:40pm 8/22/13 12:40pm