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Windows 7 was officially released to the public.
On 27, October 2009, League of Legends was released on PC and macOS to be a free online multiplayer game by Riot Games.
On October 30, Eminem headlined at the Voodoo Experience in New Orleans, his first full performance of the year. Eminem's act included several songs from Relapse, many of his older hits and an appearance by D12.