When was the Greek gods and goddesses discovered?

The Greek gods and goddesses were not "discovered" in the conventional sense, as they were part of ancient Greek religion and mythology that evolved over centuries. The earliest evidence of their worship dates back to the Mycenaean period (around 1600-1100 BCE), with many of the gods and their stories being recorded in texts like Homer's "Iliad" and "Odyssey" in the 8th century BCE. The pantheon continued to develop and was fully established by the classical period of ancient Greece (5th to 4th centuries BCE).