Assuming you mean Zeus, the king of Greek gods, Zeus was worshipped by the Greeks during the time of the ancient Greek empire.
Answer:
The Diagnostic and Statistical Manual of Mental Disorders, in its fifth edition (or DSM 5).
Explanation:
This a manual created and published by the American Psychiatry Association, which is used by most of today's psychologists for diagnostic related inquiries on mental health disorders.
Last updated, DSM 5, was published in 2013, and it is still consider as useful when seeking for statistic information.