When did ATX come out?

Can you please clarify for me when exactly the ATX cryptocurrency was introduced to the market? I'm trying to get a better understanding of its history and timeline within the broader cryptocurrency landscape. It would be great if you could provide me with a specific date or year when ATX first became available for trading or was announced to the public. Additionally, if there's any notable event or milestone associated with its launch, that would be incredibly helpful as well.