An oracle is a person or thing considered to provide insight, wise counsel or prophetic predictions, most notably including precognition of the future, inspired by deities. If done through occultic means, it is a form of divination.
The ruins of the Temple of Apollo at Didyma
Oracle bone of the Shang dynasty, ancient China
Dodona in Epirus in northwestern Greece was the oldest Hellenic oracle, possibly dating to the 2nd millennium BCE according to Herodotus. The earliest accounts in Homer describe Dodona as an oracle of Zeus. Situated in a remote region away from the main Greek poleis, it was considered second only to the Oracle of Delphi in prestige.
View of the bouleuterion in Dodona
Sacrificial hammer from Dodona. Bronze, 7th century BC. Louvre Museum
Panorama of the theatre of Dodona, the modern village Dodoni and the snow-capped Mount Tomaros are visible in the background
Terpsichore statuette from Dodona, as exhibited in the Michael C. Carlos Museum in Atlanta.