How long did the oracle function under Apollo?

The Oracle of Delphi, dedicated to the god Apollo, functioned for more than a thousand years, with its origins traditionally dated to around the 8th century BCE. It reached its peak during the 6th century BCE and continued to be active until around the 4th century CE, when it declined following the rise of Christianity and the closure of pagan temples. The oracle played a significant role in ancient Greek religion and politics, providing guidance and prophecies to individuals and city-states.