In the Ancient Greece, The people consulted the deities to know how to act in different orders of life, and the people took the name of the oracle.
There were many famous oracles, their names have not been lost with the passage of time.
God's answer could be obtained in various ways.
In Delphi the main priestess in a trance, called Pythia, was consulted and she answered, her words were considered spoken by the God Apollo.
Al oracle He was consulted by private persons and public officials on behalf of rulers, etc.
With the arrival of the Romans and then Christianity, the oracle and the city of Delphi gradually declined, although it was able to survive until 390 AD.
In the oracle of Dodoma, the signals emitted by the sound of a boiler, hit by a chain, moving with the wind, were interpreted and the sacrifice of animals was also interpreted.
The oracle Zeus is the oldest, he was born when two black doves took flight, one came to Dodoma in Epirus, to a mount of oaks and in human language said that there must be an oracle. The other landed in a Libyan oasis and said the same thing.
The oracle Apollo's was the most famous in Greece, located at Delphi. It arose on a break in the earth, on the side of the mountain, where a rarefied gas came out that affected people and animals.
The priestess sat on top of the cleft and was thought to be the god who put her in that state and thus prophesied.
They are also the oracles of Trophonius, of Aesculapius, of Apis, and others less famous.