How old is Crona?

Excuse me, could you clarify for me the age of Crona? I've been reading about various cryptocurrencies and their development timelines, and I'm curious to know how long Crona has been in existence. I'm interested in understanding its maturity and the potential for growth in the future. Is there a specific launch date that marks the beginning of Crona's journey, or perhaps a more symbolic moment that the community considers its birth? Your insights would be greatly appreciated.