2009 World Series - Wikipedia

List of the years in which said champs got released : r

League of Legends Champions Released in 2009

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LeagueOfLegends Released October 27, 2009 with 40 Champions #8League

LEAGUE OF 2009 - Which Champions Saw Their Release In 2009? - The Rift Crown

Birthday: League of Legends A Day Like Today October 27, 13 Years Ago in 2009, League of Legends was Officially Release : r/loreofleague

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Quincy Gems – Prospect League Champions 2009, 2011, 2014

2009 UEFA Champions League final - Wikipedia

Best LoL snowball champions: These are the top 20