|Neopian year:||Year 0|
Year 0 takes place in 1998, approximately one year before Neopets.com launched.
Theoretically, Neopia pre-exists the actual development of the site; there is no telling how long Adam had the idea, nor if the exact date of development is confirmed.
This period is known as Year 0, as the dating system would take a turn from the Before Neopia system to the Year System. The next year would establish itself as Year 1, and takes with the site's launch in 1999.