Congress History
| 1st | Annual | May 15-16, 1908 | Paris, France |
| 2nd | Annual | January 23-24, 1909 | Chamonix, France |
| 3rd | Annual | January 9, 1910 | Montreux, Switzerland |
| 4th | Annual | February 16-17, 1911 | Berlin, Germany |
| 5th | Annual | March 22-23, 1912 | Brussels, Belgium |
| 6th | Annual | February 22-23, 1913 | St. Moritz, Switzerland |
| 7th | Annual* | February 25-26, 1914 | Berlin, Germany |
| 8th | Annual | April 26, 1920 | Antwerp, Belgium |
| 9th | Annual | February 15, 1922 | St. Moritz, Switzerland |
| 10th | Annual | March 8-10, 1923 | Antwerp, Belgium |
| 11th | Annual | January 24, 1924 | Chamonix, France |
| 12th | Annual | January 6-7, 1925 | Prague, Czechoslovakia |
| 13th | Annual | January 11, 1926 | Davos, Switzerland |
| 14th | Annual | January 24, 1927 | Vienna, Austria |
| 15th | Annual | February 10, 1928 | St. Moritz, Switzerland |
| 16th | Annual | January 27-29, 1929 | Budapest, Hungary |
| 17th | Annual | January 26, 1930 | Chamonix, France |
| 18th | Annual | February 7-8, 1931 | Krynica, Poland |
| 19th | Annual | March 13-15, 1932 | Berlin, Germany |
| 20th | Annual | February 17-21, 1933 | Prague, Czechoslovakia |
| 21st | Annual | February 3-11, 1934 | Milan, Italy |
| 22nd | Annual | January 18-20, 1935 | Davos, Switzerland |
| 23rd | Annual | February 5-6, 1936 | Garmisch-Partenkirchen, Germany |
| 24th | Annual | February 17-25, 1937 | London, Great Britain |
| 25th | Annual | February 10-25, 1938 | Prague, Czechoslovakia |
| 26th | Annual | February 2-12 & March 5, 1939 | Zurich, Switzerland |
| 27th | Annual | April 27-28, 1946 | Brussels, Belgium |
| 28th | Congress | September 1, 1946 | Zurich, Switzerland |
| 29th | Annual | February 14-23, 1947 | Prague, Czechoslovakia |
| 30th | Congress | September 6-7, 1947 | Zurich, Switzerland |
| 31st | Congress | January 28-February 8, 1948 | St. Moritz, Switzerland |
| 32nd | Annual | July 23-25, 1948 | Zurich, Switzerland |
| 33rd | Annual | February 11-20, 1949 | Stockholm, Sweden |
| 1st | Bi-Annual | March 13-22, 1950 | London, Great Britain |
| 34th | Annual | September 18-19, 1950 | Paris, France |
| 2nd | Bi-Annual | March 9-17, 1951 | Paris, France |
| 35th | Annual | August 25-28, 1951 | Opatija, Yugoslavia |
| 36th | Annual | February 14-25, 1952 | Oslo, Norway |
| 37th | Annual | March 7-15, 1953 | Zurich, Switzerland |
| 3rd | Bi-Annual | February 26-March 7, 1954 | Stockholm, Sweden |
| 38th | Annual | August 26-28, 1954 | Stresa, Italy |
| 39th | Annual | February 27-March 5, 1955 | Düsseldorf, West Germany |
| 40th | Annual | January 25-February 5, 1956 | Cortina d’Ampezzo, Italy |
| 4th | Bi-Annual | February 24-March 5, 1957 | Moscow, Soviet Union |
| 41st | Annual | July 10-14, 1957 | Vienna, Austria |
| 42nd | Annual | February 27-March 9, 1958 | Oslo, Norway |
| 43rd | Annual | March 4-15, 1959 | Prague, Czechoslovakia |
| 5th | Bi-Annual | February 18-28, 1960 | Squaw Valley, California, USA |
| 44th | Annual | July 25-30, 1960 | Rimini, Italy |
| 45th | Annual | March 6-10, 1961 | Geneva, Switzerland |
| 46th | Annual | March 7-13, 1962 | Colorado Springs, Colorado, USA |
| 6th | Bi-Annual | March 6-17, 1963 | Stockholm, Sweden |
| 47th | Annual | August 8-14, 1963 | Montana, Switzerland |
| 48th | Annual | January 27-February 9, 1964 | Innsbruck, Austria |
| 49th | Annual | March 2-14, 1965 | Tampere, Finland |
| 7th | Bi-Annual | March 2-13, 1966 | Ljubljana, Yugoslavia |
| 50th | Annual | August 30-September 4, 1966 | Portschach, Austria |
| 51st | Annual | March 18-29, 1967 | Vienna, Austria |
| 52nd | Annual | February 5-18, 1968 | Grenoble, France |
| 53rd | Annual | March 15-30, 1969 | Stockholm, Sweden |
| 54th | Annual | July 5-12, 1969 | Crans-sur-Sierre, Switzerland |
| 55th | Annual | March 13-29, 1970 | Stockholm, Sweden |
| 56th | Annual | March 18-April 1, 1971 | Berne/Geneva, Switzerland |
| 57th | Annual | April 6-22, 1972 | Prague, Czechoslovakia |
| 8th | Bi-Annual | June 28-July 4, 1972 | Mamaia, Romania |
| 58th | Annual | March 30-April 15, 1973 | Moscow, Soviet Union |
| 59th | Annual | April 6-19, 1974 | Helsinki, Finland |
| 60th | Annual* | September 13-14, 1974 | Füssen, Germany |
| 61st | Annual | July 18-26, 1975 | Gstaad, Switzerland |
| 62nd | Annual | April 2-19, 1975 | Munich,West Germany |
| 9th | Bi-Annual | April 7-25, 1976 | Katowice, Poland |
| 63rd | Annual | October 29-30, 1976 | Paris, France |
| 64th | Annual | May 2-4, 1977 | Vienna, Austria |
| 65th | Annual | October 15-16, 1977 | Prague, Czechoslovakia |
| 66th | Annual | July 1-7, 1978 | Sirmione, Italy |
| 67th | Annual | October 27-28, 1978 | Vienna, Austria |
| 68th | Annual | April 22-26, 1979 | Moscow, Soviet Union |
| 69th | Annual | September 21-22, 1979 | The Hague, Netherlands |
| 70th | Annual*+ | June 26-27, 1980 | Stennungsund, Sweden |
| 71st | Annual | April 23-25, 1981 | Gothenburg, Sweden |
| 72nd | Semi-Annual | October 29-31, 1981 | Graz, Austria |
| 73rd | Annual | April 26-28, 1982 | Helsinki, Finland |
| 74th | General | June 14-19, 1982 | Nice, France |
| 75th | Semi-Annual | September 24-25, 1982 | Fussen, Germany |
| 76th | Annual | April 29-30, 1983 | Munich, West Germany |
| 77th | Semi-Annual | September 29-October 1, 1983 | Interlaken, Switzerland |
| 78th | Annual+ | June 26-30, 1984 | Portschach, Austria |
| 79th | Annual | April 27-30, 1985 | Prague, Czechoslovakia |
| 80th | Semi-Annual | September 6-7, 1985 | St. Julian's, Malta |
| 81st | Annual | April 22-25, 1986 | Moscow, Soviet Union |
| 82nd | Semi/General | June 7-11, 1986 | Colorado Springs, USA |
| 83rd | Annual | April 27-29, 1987 | Vienna, Austria |
| 84th | Semi-Annual | October 1-3, 1987 | Biarritz, Spain |
| 85th | Annual+ | September 6-9, 1988 | Palma de Mallorca, Spain |
| 86th | Annual | April 26-27, 1989 | Stockholm, Sweden |
| 87th | Semi-Annual | September 15-16, 1989 | Zurich, Switzerland |
| 88th | Semi-Annual | April 28-May 1, 1990 | Berne, Switzerland |
| 89th | General | June 11-16, 1990 | Saint Vincent, Italy |
| 90th | Semi-Annual | September 5-7, 1990 | Alghero, Italy |
| 91st | Annual | April 30-May 3, 1991 | Turku, Finland |
| 92nd | Semi-Annual | September 27-28, 1991 | Paris, France |
| 93rd | Annual | May 6-9, 1992 | Prague, Czechoslovakia |
| 94th | Semi-Annual | September 4-5, 1992 | Berlin, Germany |
| 95th | Annual | April 28-May 1, 1993 | Munich, Germany |
| 96th | Semi-Annual | September 23-25, 1993 | Portoroz, Slovenia |
| 97th | Annual | May 4-8, 1994 | Milan, Italy |
| 98th | General | June 7-11, 1994 | Venice, Italy |
| 99th | Semi-Annual | September 29-October 1, 1994 | London, Great Britain |
| 100th | Annual | May 3-6, 1995 | Stockholm, Sweden |
| 101st | Semi-Annual | September 29-October 1, 1995 | Budapest, Hungary |
| 102nd | Annual | May 1-3, 1996 | Vienna, Austria |
| 103rd | Semi-Annual | September 26-28, 1996 | Cannes, France |
| 104th | Annual | May 10-14, 1997 | Helsinki, Finland |
| 105th | Semi-Annual | September 25-27, 1997 | Vilamoura, Portugal |
| 106th | General-Annual | June 1-6, 1998 | Lausanne, Switzerland |
| 107th | Semi-Annual | October 1-3, 1998 | Toronto, Canada |
| 108th | Annual | May 13-16, 1999 | Lillehammer, Norway |
| 109th | Semi-Annual | September 22-26, 1999 | Ft. Lauderdale, Florida, USA |
| 110th | Annual | May 11-14, 2000 | St. Petersburg, Russia |
| 111th | Semi-Annual | September 7-9, 2000 | Palma de Mallorca, Spain |
| 112th | Annual | May 10-12, 2001 | Hanover, Germany |
| 113th | Semi-Annual | October 4-6, 2001 | Malmö, Sweden |
| 114th | Annual | May 8-11, 2002 | Gothenburg, Sweden |
| 115th | Semi-Annual | September 12-14, 2002 | Taormina, Italy |
| 116th | General-Annual | June 1-8, 2003 | Marbella, Spain |
| 117th | Semi-Annual | September 18-20, 2003 | Hersonissos, Greece |
| 118th | Annual | May 6-8, 2004 | Prague, Czech Republic |
| 119th | Semi-Annual | September 30-October 2, 2004 | Belek, Turkey |
| 120th | Annual | May 12-14, 2005 | Vienna, Austria |
| 121st | Semi-Annual | September 15-17, 2005 | Vilamoura, Portugal |
| 122nd | Annual | May 17-19, 2006 | Riga, Latvia |
| 123rd | Semi-Annual | September 28-30, 2006 | Athens, Greece |
| 124th | Annual | May 31, 2007 | Moscow, Russia |
| 125th | Semi-Annual | September 20-22, 2007 | Vancouver, Canada |
| 126th | Annual | May 22-24, 2008 | Montreal, Canada |
| 127th | Semi-Annual | September 25-27, 2008 | Montreux, Switzerland |
| 128th | Annual | May 7-9, 2009 | Berne, Switzerland |
| 129th | Semi-Annual | September 17-19, 2009 | La Marsa, Tunisia |
| 130th | Annual | May 20-23, 2010 | Cologne, Germany |
| 131st | Semi-Annual | September 16-18, 2010 | Portoroz, Slovenia |
| 132nd | Annual | May 12-14, 2011 | Bratislava, Slovakia |
| 133rd | Semi-Annual | September 22-24, 2011 | Istanbul, Turkey |
| 134th | Annual | May 17-20, 2012 | Helsinki, Finland |
| 135th | General-Semi | September 24-30, 2012 | Tokyo, Japan |
* extraordinary congress as well as annual
+ annual and semi-annual congresses combined
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