When it was made: Second to fourth centuries A.D. Roman dodecahedrons have baffled archaeologists since 1739, when the first example of the 12-sided bronze object was discovered in the English ...
Roman dodecahedra are something of an enigma: there is no known mention of these 12-sided, hollow objects in ancient Roman texts or images. First discovered in the 18th century, around 130 dodecahedra ...