Past:

I

1967

Warsaw (Poland)

II

1968

Budapest (Hungary)

III

1969

Brno (Czecho-Slovakia)

IV

1970

Moscow (Soviet Union)

V

1971

Sofia (Bulgaria)

VI

1972

Bucharest (Romania)

VII

1974

Warsaw (Poland)

VIII

1975

Guestrow (GDR)

IX

1976

Budapest (Hungary)

X

1977

Hradec Kralove (Czecho-Slovakia)

XI

1979

Moscow (Soviet Union)

XII

1981

Varna (Bulgaria)

XIII

1982

Malente (FRG)

XIV

1983

Bucharest (Romania)

XV

1984

Sigtuna (Sweden)

XVI

1985

Portoroz (SFR Yugoslavia)

XVII

1986

London-Harrow (United Kingdom)

XVIII

1987

Jena (GDR)

XIX

1988

Bad Ischl (Austria)

XX

1989

Warsaw (Poland)

XXI

1990

Groningen (The Netherlands)

XXII

1991

Havana (Cuba)

XXIII

1992

Helsinki (Finland)

XXIV

1993

Williamsburg (USA)

XXV

1994

Beijing (China)

XXVI

1995

Canberra (Australia)

XXVII

1996

Oslo (Norway)

XXVIII

1997

Sudbury (Canada)

XXIX

1998

Reykjavik (Iceland)

XXX

1999

Padova (Italy)

XXXI

2000

Leicester (Great Britain)

XXXII

2001

Antalya (Turkey)

Future:

XLII

2002

Jakarta (Indonesia) - confirmed

XXXIV

2003

(*) (Taipei C) - confirmed

XXXV

2004

(*) (South Korea) - confirmed

XXXVI

2005

(*) (Spain) - confirmed

XXXVII

2006

(*) (Singapore) - confirmed

XXXVIII

2007

(*) (Iran) - confirmed

XXXIX

2008

(*) (Vietnam) - confirmed

XL

2009

(*) (Mexico) - confirmed

XLI

2010

(*) (Croatia) - confirmed

XXXIII

2011

(*) (Belgium) - confirmed

XLIII

2012

(*) (Estonia) - confirmed

XLIV

2013

(*) (Denmark) - confirmed

XLV

2014

(*) (Slovenia) - preliminary contacts

XLVI

2015

Dublin (Ireland) - preliminary contacts

XLVII

2016

(*) (Switzerland) - preliminary contacts

XLVIII

2017

(*) (Moldova) - preliminary contacts

XLIX

2018

(*) (Portugal) - preliminary contacts