League of Legends
Timeline
  • 2009
    • October
      • 10.27.2009

        Launch – 10/27/2009

        League of Legends was officially launched in both North America and Europe. The game featured 40 playable champions...

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    • November
    • December
  • 2010
    • January
    • February
    • March
      • 3.30.2010

        Twisted Treeline – 3/30/2010

        The highly anticipated Twisted Treeline map launches. Built from the ground up, Twisted Treeline offers faster paced 3v3 gameplay...

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    • April
    • May
      • 5.1.2010

        Twisted Treeline Tournament

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    • June
    • July
      • 7.13.2010

        Season One – 7/13/2010

        Season One marks the largest content update to date and the start of the first major competitive season for League of Legends. Season One includes many new game features...

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      • 7.13.2010

        Journal of Justice

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    • August
      • 8.10.2010

        Rune Pages

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    • September
    • October
      • 10.2.2010

        WCG Finals

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      • 10.14.2010

        PVP Tournament

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    • November
      • 11.3.2010

        Battle Training - 11/3/2010

        Set on the Summoner’s Rift map, Battle Training coaches new players on the many nuances of the game...

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    • December
      • 12.14.2010

        Automated Leaver Banning - 12/14/2010

        League of Legends introduces the latest addition to LeaverBuster: Automated Leaver Banning...

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  • 2011
    • January
      • 1.19.2011

        AFK Detection - 01/19/2011

        The LeaverBuster system is now able to detect those players who refuse to actively participate in games in addition to those who overtly quit...

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    • February
      • 2.15.2011

        Co-Op versus AI - 02/15/11

        The addition of Co-Op versus AI afforded new and veteran summoners alike a place to test their skills against AI bots rather than other players...

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    • March
      • 3.14.2011

        IEM – CeBit

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    • April
    • May
      • 5.24.2011

        The Tribunal - 05/24/2011

        Tribunal is launched, giving the community the opportunity to govern itself through the new service...

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      • 5.24.2011

        Mastery Pages

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    • June
      • 6.18.2011

        Season One Championships 06/18/2011

        On this date, the epic conclusion of League of Legends premier competitive season took place at DreamHack in Jönköping, Sweden...

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    • July
    • August
    • September
      • 9.13.2011

        End of Ladder Season One – 09/13/2011

        Ladder Season One came to a close with the recognition of all those players who participated in making the premier season a competitive success...

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      • 9.26.2011

        League of Legends: Dominion – 09/26/2011

        Dominion, a brand new map and game mode, and one of the largest updates ever to be made to League of Legends, brings with it exciting and innovative new gameplay!

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    • October
      • 10.19.2011

        Harrowing

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    • November
      • 11.22.2011

        New Masteries – 11/22/2011

        The start of Season Two brought along an overhaul of the Masteries system, providing players with even more strategic options for their champs...

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      • 11.22.2011

        League of Legends Season Two Launch – 11/22/2011

        Season Two officially launched in all territories on this date, bringing a host of new features to League of Legends...

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    • December
      • 12.14.2011

        Snowdown Showdown

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  • 2012
    • January
      • 1.11.2012

        Lunar Revel

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      • 1.12.2012

        Colorblind Mode

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      • 1.24.2012

        Expanded Co-op vs. AI - 01/24/2012

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    • February
    • March
      • 3.20.2012

        The Great Hunt

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    • April
      • 4.17.2012

        Server-Side Masteries

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      • 4.25.2012

        Refer-a-Friend 2.0 - 04/25/2012

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      • 4.27.2012

        Spectator Mode Full Release - 04/27/2012

        The spectator mode open beta came to a close, bringing the full release of Spectator Mode to summoners all over the world!

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    • May
      • 5.23.2012

        Summoner’s Rift Update

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    • June
      • 6.29.2012

        Pulsefire Ezreal - 06/29/2012

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    • July
    • August
      • 8.3.2012

        Battlecast Cho'Gath - 08/03/2012

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    • September
      • 9.6.2012

        Streamer Portal - 09/06/12

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      • 9.19.2012

        Refund Feature - 09/19/2012

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    • October
      • 10.1.2012

        Honor Initiative - 10/01/2012

        When the game’s over, award Honor to players who helped make the match a positive experience!

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      • 10.13.2012

        Season Two Championships - 10/13/2012

        On this day, the epic conclusion of League of Legends second competitive season took place at the Galen Center in Los Angeles, California...

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      • 10.25.2012

        Justice Review - 10/25/2012

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      • 10.25.2012

        Twisted Treeline Beta - 10/25/2012

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      • 10.26.2012

        Shadow Isles - 10/26/2012

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      • 10.26.2012

        Harrowing - 10/26/2012

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      • 10.29.2012

        T.T. Co-op vs. AI - 10/29/2012

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    • November
      • 11.12.2012

        End of Season Two - 11/12/2012

        Season Two officially came to a close on this day. All players who participated in the competitive ladder earned rewards based on the top rating they achieved.

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    • December
      • 12.3.2012

        Preseason Update - 12/03/2012

        We were extremely pleased with Season Two, but we think there’s always room to make the League of Legends metagame even better.

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      • 12.5.2012

        Eternum Nocturne - 12/05/2012

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      • 12.14.2012

        Snowdown Showdown

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  • 2013
    • January
      • 1.17.2013

        Aether Wing Kayle - 01/17/13

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    • February
      • 2.1.2013

        League of Legends Season Three Launch - 02/01/13

        The best teams in League of Legends esports took their first steps on the road to the World Championship.

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      • 2.1.2013

        New League System - 02/01/13

        In Season 3 we introduced a new league system to provide more challenges for competitive players and a greater sense of progression for newcomers.

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      • 2.8.2013

        Gifting Center - 02/08/2013

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      • 2.8.2013

        Lunar Revel - 02/08/2013

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      • 2.11.2013

        Collegiate Program - 02/11/2013

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    • March
    • April