Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
Q: Context: The Pyrgi Tablets, found in a 1964 excavation of a sanctuary of ancient Pyrgi on the Tyrrhenian coast of Italy (today the town of Santa Severa), are three golden leaves that record a dedication made around 500 BCE by Thefarie Velianas, king of Caere, to the Phoenician goddess E"Ashtaret.
Question: When did the discovery or creation of Pyrgi Tablets occur?
A:
1964