When was the Kraken first seen?

Could you please clarify the context in which the term "Kraken" is being used? If it refers to a mythical sea creature, then the Kraken is a creature from Norse mythology and folklore, not a real-world entity that can be pinpointed to a specific date of first sighting. However, if you're referring to a cryptocurrency or a financial institution named Kraken, I would need more information about its origin and history to accurately answer the question of when it was first seen or established. Could you please provide me with more details or context so I can better understand your inquiry?