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PREVIOUS IChOs
Find out where the past IChO's took place
 54th IChO 2022 ChinaNankai District, Tianjin, P.R. China 8 July to 18 July 2022 (remote) |  53rd IChO JAPKansai Area, Japan 25 July to 2 August 2021 (remote) |
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 52nd IChOIstanbul, Turkey 23 to 29 July 2020 (remote) |  51st IChOParis, France 21 to 30 July 2019 |
 50th IChOBratislava, Slovakia and Prague, Czech Republic 19 to 29 July 2018 |  49th IChONakhon Pathom, Thailand 6 to 15 July 2017 |
 48th IChOTbilisi, Georgia 23 July to 1 August 2016 |  47th IChOBaku, Azerbaijan 20 to 29 July 2015 |
 46th IChOHanoi, Vietnam 20 to 29 July 2014 |  45th IChOMoscow, Russia 15 to 24 July 2013 |
 44th IChOWashington DC, United States 21 to 30 July 2012 |  43rd IChOAnkara, Türkiye 9 to 18 July 2011 |
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