It was proposed to hold a discussion group for all aspects of essential oils (separation of terpenes, chemistry, chemotaxonomy or other relevant topics regarding the constituents of essential oils).

Then in 1969, the first ISEO was organized in Leiden, the Netherlands with invited speakers. The Symposium Ätherische Öle was changed around 1980 into the International Symposium on Essential Oils (ISEO).

 

Series of ISEO conferences:

Edition	Year	Venue	Host
0	initiation 1969	Leiden, The Netherlands	A. Baerheim-Svendsen
1	1970	Leiden, The Netherlands	A. Baerheim-Svendsen
2	1971	Freiburg, Germany	F.-W. Hefendehl
3	1972	Helsinki, Finland	M. von Schantz
4	1973	Freiburg, Germany	F.-W. Hefendehl
5	1974	Freiburg, Germany	F.-W. Hefendehl
6	1975	Leiden, The Netherlands	A. Baerheim-Svendsen
7	1976	Würzburg, Germany	K.-H. Kubeczka
8	1977	Freiburg, Germany	F.-W. Hefendehl
9	1978	Münster, Germany	H. Hörster
10	1979	Würzburg, Germany	K.-H. Kubeczka
11	1980	Groningen, The Netherlands	M.H. Boelens, H. Hendriks
12	1981	Marburg, Germany	K.-H. Kubezka
13	1982	Würzburg, Germany	K.-H. Kubeczka
14	1983	Freising-Weihenstephan, Germany	Ch. Franz
15	1984	Leiden, The Netherlands	A. Baerheim-Svendsen
16	1985	Holzminden/Neuhaus, Germany	E.-J. Brunke
17	1986	Bad Bevensen, Germany	E. Stahl-Biskup
18	1987	Nordwijkerhout, The Netherlands	J.J.C. Scheffer
19	1988	Zürich-Greifensee, Switzerland	D. Lamparsky, R. Kaiser
20	1989	Würzburg, Germany	K.-H. Kubeczka
21	1990	Lahti, Finland	R. Hiltunen
22	1991	St.Vincent, Italy	C. Bicchi
23	1992	Auchincruive, UK	S. Deans, K. Svoboda
24	1993	Berlin, Germany	P. Weyerstahl, H. Schilcher
25	1994	Grasse, France	D. Joulain
26	1995	Hamburg, Germany	K.-H. Kubeczka
27	1996	Wien/Vienna, Austria	Ch. Franz, G. Buchbauer
28	1997	Eskisehir, Turkey	K.H.C. Baser, N. Kirimer
29	1998	Frankfurt, Germany	W. König, A. Mosandl
30	1999	Leipzig/Miltitz, Germany	Bell Flavours & Fragrances
31	2000	Hamburg, Germany	K.-H. Kubeczka, W. König
32	2001	Wroclaw, Poland	S. Lochynski
33	2002	Lisbon, Portugal	A. Figueiredo
34	2003	Würzburg, Germany	K.-H. Kubeczka
35	2004	Giardini Naxos, Italy	L. Mondello, G. Dugo
36	2005	Budapest, Hungary	E. Nemeth
37	2006	Grasse, France	D. Joulain
38	2007	Graz, Austria	Ch. Franz, J. Novak, R. Bauer
39	2008	Quedlinburg, Germany	J. Schulz
40	2009	Savigliano, Italy	C. Bicchi, P. Rubiolo
41	2010	Wroclaw, Poland	S. Lochynski
42	2011	Antalya, Turkey	K.H.C. Baser, F. Demirci
43	2012	Lisbon, Portugal	A. Figueiredo
44	2013	Budapest, Hungary	E. Nemeth
45	2014	Istanbul, Turkey	K.H.C. Baser, F. Demirci
46	2015	Lublin, Poland	A. Ludwiczuk
47	2016	Nice, France	N. Baldovini
48	2017	Pecs, Hungary	G. Horvath
49	2018	Nis, Serbia	N. Radulovic
50	2019	Vienna, Austria	J. Novak, I. Stappen, Ch. Franz
51	2021	Nicosia, N. Cyprus (On-line)	K.H.C. Baser, F. Demirci
52	2022	Wroclaw, Poland	S. Lochynski, D. Strub
53	2023	MIlazzo, Italy	P. Dugo, L. Mondello