Perhaps the best known and best recorded of all mystery cults in ancient Greece
They have attracted attention from ancient times to the modern day
This is partly because they were unlike any other Greek religious festival
They were incorporated into Athenian civic religion as a regular part of the sacred calendar from the late 6th c. onwards
Anyone could be initiated, whether man or woman, free or slave, old or young, Greek, or non-Greek, as long as they spoke Greek and hadn’t been involved in murder (or other serious crimes)
This was unique for a Greek festival
Every participant able to pay a contribution could take part in an individual initiation after which, his or her status was changed from being uninitiated to initiated
This status lasted for life
The initiated were not allowed to speak about what happened, in particular the revelation of the secret
This created a distinction between those who knew and those who didn’t
The secret has been kept more or less over the years
The only thing for certain is that the secret was shared in a ceremony at the end of the festival but never actually revealed by the uninitiated
Revealing the secret to the non-initiated, or and speaking about it in public was a capital crime with the death penalty
The Athenian leader Alcibiades was accused of mocking the mysteries in his home together with friends and some uninitiated people
Despite the fact he never went to court to defend himself, he was convincted (Thucydides 6.27-63; Andocides 1 [On the Mysteries])
This shows not only the importance of the festival itself but also its status as a religious institution in Athens