The standard definition of a dodecahedron is a geometrical object with twelve faces. A Roman dodecahedron is defined as a smallish object with twelve equally-sized faces and holes in the middle of each side that surrounds a hollow middle.
Approximately 100 of these objects have been found throughout Europe : Wales, Italy, Germany, France and other modern countries. Tests show them as dating between the 100s and 200s C.E.Despite the number of them and the fact that they have been found in places known to be populated by the ancient Romans, nobody knows what they are or what purpose they served.
