The first of the International Mathematical Olympiads (IMOs) was held in Romania in 1959. The oldest of the International Science Olympiads, the IMO has since been held annually, except in 1980. That year, the competition initially planned to be held in Mongolia was cancelled due to the Soviet invasion of Afghanistan. Because the competition was initially founded for Eastern European countries participating in the Warsaw Pact, under the influence of the Eastern Bloc, the earlier IMOs were hosted only in Eastern European countries, gradually spreading to other nations.
The first IMO was held in Romania in 1959. Seven countries entered – Bulgaria, Czechoslovakia, East Germany, Hungary, Poland, Romania and the Soviet Union – with the hosts finishing as the top-ranked nation. The number of participating countries has since risen: 14 countries took part in 1969, 50 in 1989, and 104 in 2009.
North Korea is the only country whose entire team has been caught cheating, resulting in its disqualification at the 32nd IMO in 1991 and the 51st IMO in 2010. (However, the 2010 case was controversial.) There have been other disqualifications of contestants due to cheating, but such cases are not officially made public. In January 2011, Google gave €1 million to the IMO organization to help cover the costs of the events from 2011 to 2015.Google Europe Blog: Giving young mathematicians the chance to shine . Googlepolicyeurope.blogspot.com (2011-01-21). Retrieved on 2013-10-29.
List of Olympiads
# Venue Year Date Top-ranked country References 1 Brașov and Bucharest1959 June 23 – July 31 2 Sinaia1960 July 18 – July 25 3 Veszprém1961 July 6 – July 16 4 1962 July 7 – July 15 5 Warsaw and Wrocław1963 July 5 – July 13 6 Moscow1964 June 30 – July 10 7 East Berlin1965 June 13 – July 13 8 Sofia1966 July 3 – July 13 9 Cetinje1967 July 7 – July 13 10 Moscow1968 July 5 – July 18 11 Bucharest1969 July 5 – July 20 12 Keszthely1970 July 8 – July 22 13 Žilina1971 July 10 – July 21 14 Toruń1972 July 5 – July 17 15 Moscow1973 July 5 – July 16 16 Erfurt and East Berlin1974 July 4 – July 17 17 Burgas and Sofia1975 July 3 – July 16 18 Lienz1976 July 2 – July 21 19 Belgrade1977 July 1 – July 13 20 Bucharest1978 July 3 – July 10 21 London1979 June 30 – July 9 -Unofficial events were held in Finland and Luxembourg in 1980. 22 Washington, D.C.1981 July 8 – July 20 23 Budapest1982 July 5 – July 14 24 Paris1983 July 3 – July 12 25 Prague1984 June 29 – July 10 26 Joutsa1985 June 29 – July 11 27 Warsaw1986 July 4 – July 15 28 Havana1987 July 5 – July 16 29 Sydney and Canberra1988 July 9 – July 21 30 Braunschweig1989 July 13 – July 24 31 Beijing1990 July 8 – July 19 32 Sigtuna1991 July 12 – July 23 33 Moscow1992 July 10 – July 21 34 Istanbul1993 July 13 – July 24 35 Hong KongAt the time of the Olympiad, Hong Kong was under British colonial rule.1994 July 8 – July 20 36 Toronto1995 July 13 – July 25 37 Mumbai1996 July 5 – July 17 38 Mar del Plata1997 July 18 – July 31 39 Taipei1998 July 10 – July 21 40 Bucharest1999 July 10 – July 22 41 Daejeon2000 July 13 – July 25 42 Washington, D.C.2001 July 1 – July 14 43 Glasgow2002 July 19 – July 30 44 Tokyo2003 July 7 – July 19 45 Athens2004 July 6 – July 18 46 Mérida2005 July 8 – July 19 47 Ljubljana2006 July 6 – July 18 48 Hanoi2007 July 19 – July 31 49 Madrid2008 July 10 – July 22 50 Bremen2009 July 10 – July 22 51 Astana2010 July 2 – July 14 52 Amsterdam2011 July 13 – July 24 53 Mar del Plata2012 July 4 – July 16 54 Santa Marta 2013 July 18 – July 28 55 Cape Town2014 July 3 – July 13 56 Chiang Mai2015 July 4 – July 16 57 Hong Kong2016 July 6 – July 16 58 Rio de Janeiro 2017 July 12 – July 23 59 Cluj-Napoca2018 July 3 – July 14 60 Bath2019 July 11 – July 22 61 St. Petersburg (online)2020 September 19 – September 28 62 St. Petersburg (online)2021 July 14 – July 24 63 Oslo (hybrid)2022 July 6 – July 16 64 Chiba2023 July 2 – July 13 65 Bath2024 July 11 – July 22 66 Sunshine Coast2025 July 10 – July 20 67 Shanghai2026 July 10 – July 21 68 Budapest2027 July 16 – July 26TBD 69 Thuwal2028 July 7 – July 18TBD 70 Ulaanbaatar2029 TBDTBD 71 Lausanne2030July 18 – July 28TBD
See also Asian Pacific Mathematics Olympiad Provincial Mathematical Olympiad List of mathematics competitions List of International Mathematical Olympiad participants List of countries by medal count at International Mathematical Olympiad
Notes
References
Bibliography
External links Official IMO site International Mathematical Olympiad Info Page at Mathematical Association of America