Millenium was a French esports organization. They first entered the League of Legends scene on June 22, 2011 when they acquired the roster of against All authority .
A millennium (plural millennia or millenniums ) is a period equal to 1000 years ,  also called kiloyears. It derives from the Latin mille , thousand, and annus , year. It is often, but not always, related to a particular dating system .