#
|
Location
|
Year
|
I
|
New York, NY, United States
|
1958
|
[1]
|
II
|
Boulder, CO, United States
|
1961
|
III
|
London, United Kingdom
|
1963
|
IV
|
Quebec, QC, Canada
|
1965
|
V
|
Leningrad, Soviet Union
|
1967
|
VI
|
Cambridge, MA, United States
|
1969
|
VII
|
Amsterdam, Netherlands
|
1971
|
VIII
|
Belgrade, Yugoslavia
|
1973
|
IX
|
Seattle, WA, United States
|
1975
|
X
|
Paris, France
|
1977
|
XI
|
Kyoto, Japan
|
1979
|
XII
|
Gatlinburg, TN, United States
|
1981
|
XIII
|
West Berlin, West Germany
|
1983
|
XIV
|
Stanford, CA, United States
|
1985
|
XV
|
Brighton, United Kingdom
|
1987
|
XVI
|
New York, NY, United States
|
1989
|
XVII
|
Brisbane, Australia
|
1991
|
XVIII
|
Århus, Denmark
|
1993
|
XIX
|
Whistler, BC, Canada
|
1995
|
XX
|
Vienna, Austria
|
1997
|
XXI
|
Sendai, Japan
|
1999
|
XXII
|
Santa Fe, NM, United States
|
2001
|
[1]
|
XXIII
|
Stockholm, Sweden
|
2003
|
XXIV
|
Rosario, Argentina
|
2005
|
XXV
|
Freiburg, Germany
|
2007
|
[1]
|
XXVI
|
Kalamazoo, MI, United States
|
2009
|
[2]
|
XXVII
|
Belfast, United Kingdom
|
2011, 27 July - 2 August
|
[1][3]
|
XXVIII
|
Lanzhou, China
|
2013
|
[1]
|
XXIX
|
Toledo, Spain
|
2015, 22 – 28 July
|
[4]
|
XXX
|
Cairns, Queensland, Australia
|
2017, 26 July - 1 August
|
[5]
|
XXXI
|
Deauville, France
|
2019, 23 – 30 July
|
[6]
|
XXXII
|
Virtual Event
|
2021, 20 – 23 July
|
[7]
|
XXXIII
|
Ottawa, Canada
|
2023, 25 July – 1 August
|
[8]
|