Year

A year is the time it takes the Earth to complete one revolution of the Sun (between 365.24 and 365.26 days depending on the point of reference).

Gaia has been active since the following:
 * 2013, Gaia Online became 10 years old.
 * 2012
 * 2011
 * 2010
 * 2009
 * 2008
 * 2007
 * 2006
 * 2005
 * 2004 of April 20 - 30th, Go-Gaia changes to Gaia Online switching the URL to gaiaonline.com.
 * 2003 of February 18th, Go-Gaia is born. And on June 24?, the Donation Item, Angelic Halo Mc icon AngelicHalo.png is released, it was the first collectible.