Dark message warning enemy to 'learn your lesson' found inscribed on 2,000-year-old sling bullet from ancient Holy Land

A close up of a yellow and gray stone with lettering carved into its round face.

Israeli archaeologists have unearthed a 2,000-year-old sling bullet inscribed with a cruel message: an ancient admonition telling enemies "Learn your lesson."

The sling bullet was found in the remains of the ancient city of Hippos (also known as Sussita). The molten lead for the ammunition had been poured into a mold emblazoned with the Greek letters for "learn."