I | SPAIN, Marbelca | Aug 8, 1973 | Dr. Guillermo R. di Paola |
II | USA, Key Biscayne, Fl | Jan. 9-11, 1975 | Dr. J. Donald Woodruff |
III | MEXICO, Cocoyoc | Oct 22-24,1976 | Dr. Herman L. Gardner |
IV | FRANCE, Montbazon | May 22-25, 1978 | Dr. Jean Hewitt |
V | USA, Maui, Hawaii | Oct 21-23 1979 | Dr. Raymond H. Kaufman |
VI | ENGLAND, Cambridge | Sept 22-24, 1981 | Dr. Charles P. Douglas |
VII | USA, Lake Buena Vista, Fl | Sept 25-29, 1983 | Dr. Eduard G. Friedrich, Jr. |
VIII | FINLAND, Mariehamn | Sept 9-12, 1985 | Dr. Peter J. Lynch |
IX | AUSTRALIA, Queensland | Aug. 3O-Sept. 3, 1987 | Dr. Barry L. Kneale |
X | USA, Washington, D.C. | Oct. 22-26, 1989 | Dr. Edward J. Wilkinson |
XI | ENGLAND, Oxford | Sept. 22-26, 1991 | Dr. C. Marjorie Ridley |
XII | CANADA, Quebec | Sept 26-30, 1993 | Dr. Michel Roy |
XIII | ARGENTINA, Iguazu | Sept. 17-20, 1995 | Dr. Nidia Gomez Rueda Leverone |
XIV | ITALY, Baveno | Sept. 14-20, 1997 | Dr. Dale Brown, Jr. |
XV | USA, Santa Fe, New Mexico | Sept. 26-Oct.2, 1999 | Dr. Mario Sideri |
XVI | PORTUGAL, Sintra/Porto | Sept. 30-Oct.6, 2001 | Dr. Marilynne McKay |
XVII | BRAZIL, Salvador | Oct. 12-16, 2003 | Dr. Jose’ Martinez de Oliveira |
XVIII | NEW ZEALAND, Queenstown | Feb. 20-24, 2006 | Dr. Ronald W. Jones |
XIX | ALASKA, Inside Passage Cruise | July 28- Aug 3, 2007 | Dr. Libby Edwards |
XX | SCOTLAND, Edinburgh | September 13-17, 2009 | Dr. Allan B. MacLean |
XXI | FRANCE, Paris | September 5-8, 2011 | Dr. Micheline Moyal-Barracco |
XXII | ROYAL CARIBBEAN, Mediterranean Cruise | October 6-13, 2013 | Dr. Jacob Bornstein |
XXIII | NEW YORK, New York | July 27-29, 2015 | Dr. Hope Haefner |
XXIV | ARGENTINA, Mendoza | September 11-15, 2017 | Dr. Claudia Marchitelli |
XXV | ITALY, Torino | September 18-20, 2019 | Dr. Mario Preti |
XXVI | IRELAND, Dublin | September 18-20, 2022 | Dr. Colleen K. Stockdale |