If you're asking about the age of Mount Arayat — it's a potentially inactive stratovolcano located in Pampanga, Philippines. It is estimated to be around 1.2 million years old, based on geological studies.

"History or mythology of Mount Arayat over the years?"
Mount Arayat features in Filipino folklore, especially the myth of Mariang Sinukuan, a mountain goddess believed to reside there. I can provide more details on its historical or cultural significance.

"Eruption history over the years?"
There are no confirmed historical eruptions of Mount Arayat, though it has geothermal activity and is classified as a potentially active volcano by PHIVOLCS.