Questions about Ancient Greek religion

Short answers, pulled from the story.

Who was the highest ruling deity in ancient Greek religion?

Zeus ruled over all other deities while remaining subject to fate itself. The Moirai or Fates could override even the will of Zeus proving no god was truly almighty.

When did the last Olympic Games take place under Roman rule?

The last Olympic Games were held in 393 CE before Emperor Theodosius suppressed further attempts to hold them. This event occurred during a period when Theodosius strictly enforced anti-pagan laws and disbanded priesthoods.

How many followers does modern Hellenism have according to U.S State Department estimates from 2006?

Estimates reported by the U.S State Department in 2006 suggest perhaps as many as 2,000 followers of ancient Greek religion out of a total Greek population of 11 million. Leaders of Hellenism place this figure at 100,000 instead.

Where did Greeks perform sacrifices relative to temple buildings?

Worship typically involved sacrificing domestic animals at altars located outside temple buildings rather than inside them. Temple interiors never served meeting places since sacrifices took place outside at altars within wider precincts.

What happened to the skins of sacrificed animals in ancient Greece?

Temples kept skins to sell to tanners after rituals concluded and meat was removed for participants. Humans derived more use from sacrifices than deities did which often became subject to humor in Greek comedy.