IMO 2017 – Brazil
The 58th International Mathematical Olympiad was in Rio de Janeiro, from 12 to 24 July 2017. Hosted by Instituto Nacional de Matemática Pura e Aplicada (IMPA), the IMO 2017 was held jointly with the International Congress of Mathematicians ICM 2018, as part of the Biennium of Mathematics 2017–2018 Gomes de Souza, an initiative that aimed to disseminate mathematical and scientific knowledge throughout society A total of 110 countries participated with Republic of Korea earning first place.