But at some point an historic stake in Roman society was invented for these associations. There was a tall, but important, story that it was the second king of Rome, Numa, who first established them, to include the builders, bronze workers, potters, goldsmiths, dyers, leather processers and musicians. Whoever dreamt this up, and it was a dream, was giving the craftsmen and their organisations a genealogy that went back almost as far as it was possible to go in Roman history.