It is scarcely probable that they were eunuchs, since mutilation is in the East always regarded as a species of degradation.

Perhaps they merely shaved the beard for greater cleanliness, like the priests of the Egyptians and possibly it was a custom only obligatory on the upper grades of the priesthood.
We have no evidence of the establishment of set festivals in Assyria.
Apparently the monarchs decided, of their own will, when a feast should be held to any god; and, proclamation being made, the feast was held accordingly.

Vast numbers, especially of the chief men, were assembled on such occasions; numerous sacrifices were offered, and the festivities lasted for several days.

A considerable proportion of the worshippers were accommodated in the royal palace, to which the temple was ordinarily a mere adjunct, being fed at the king's cost, and lodged in the halls and other apartments.
The Assyrians made occasionally a religious use of fasting.

The evidence on this point is confined to the Book of Jonah, which, however, distinctly shows both the fact and the nature of the usage.