How old is the Nyan Cat?

Could you please elaborate on the age of the Nyan Cat? I'm curious to know if this popular internet meme has been around for quite some time, or if it's a more recent addition to the digital world. Additionally, do you know if there's any specific event or date that marks the inception of the Nyan Cat, or if its origins are shrouded in mystery? I'm fascinated by the history of internet culture and would love to learn more about the Nyan Cat's backstory.