The Awakening in 2011 signifies the beginning of The Sixth World, when Magic returned to the world. While most attribute the Awakening to a single date based on the Mayan solar calendar, the Awakening actually happened more gradually over the period of several years, even decades (some scholars claim that the Awakening is still going on in the present). For example, one consequence of the Awakening, Goblinization, did not occur until a decade had passed. The Century Ferret was discovered a decade before 2011.
In any case, the Awakening signifies the turning point that makes the Sixth World drastically different than the Fifth World before it.