Astragalomancy: knucklebones and dice oracles in antiquity

Before six-sided dice, Greeks and Romans played games and questioned fate with astragals, small tarsal bones of sheep and goats. They had four sides on which they could land, each with a different value. From these humble objects, found in large numbers in excavations and sometimes reproduced in bronze, glass or stone, arose astragalomancy: divination entrusted to the way the bones fell.

Bones for play

In the Greek world astragals were a game for children and young women, as vase paintings and figurines show. Among adults they were used for games of chance. The Romans called them tali; the four sides were given the values one, three, four and six. The best throw, in which each bone showed a different face, was called the «Venus throw», while the worst was called the «dog». Suetonius, in his life of Augustus, recalls that the emperor enjoyed playing at dice during festivals.

The step from game to oracle was a natural one. If the outcome of a throw escapes human control, in the ancient mind it could be read as the voice of a god. It is no accident that astragals also appear among offerings in sanctuaries and in tombs, where they accompanied the dead, especially the young. They were everyday objects, yet charged with a value that went beyond mere pastime.

The oracle of Heracles at Bura

Pausanias, in the second century AD, describes in the seventh book of his Description of Greece an oracle of Heracles at Bura, in Achaea. In a cave stood a small statue of the god. Those who consulted him prayed before the image, then threw four astragals onto a table. For each combination there was a written response, which was read and interpreted. Pausanias reports the procedure with his usual sobriety, as a living practice of his own time.

This detail matters: the oracle did not depend on an inspired priest but on a fixed repertoire of answers. Chance chose, and the text spoke. A system of this kind required neither visions nor ecstasy, and could work even in a small provincial sanctuary. Pausanias mentions oracles of other kinds elsewhere, but the one at Bura is striking for its almost administrative concreteness.

The inscriptions of Asia Minor

The most striking confirmation comes from Asia Minor in the imperial period. In several cities of Lycia, Pisidia and Pamphylia, large inscriptions bearing astragal oracles have been found, carved on pillars or walls in public places. Each line records a combination of values, usually obtained with five astragals, their sum, the name of a deity and a short response in verse.

The answers are concise sayings that urge action or patience, promise success or give warning. They represent a kind of «self-service» oracle, available to travellers and merchants without the involvement of a major sanctuary. The scholars who have published and compared them have noted that very similar texts recur in different cities, a sign that a common model circulated, copied and adapted locally.

A quiet legacy

As the cubic die gained ground, astragals lost favour, but they did not disappear entirely. In various regions of the Mediterranean and Central Asia, tarsal bones continued to be used in traditional games until recent times, while their divinatory use is documented in some pastoral cultures of Inner Asia, where knucklebones remain familiar objects.

Astragalomancy reminds us that the boundary between play and the sacred was thin in the ancient world. The same bone that rolled in children's hands could, on a consecrated table, become a message from the gods, written in advance and selected by chance. The stone inscriptions remain its most eloquent witness today.