List of Worldcons

1	Nycon I	2-4 July 1939
2	Chicon I	1-2 Sep 1940
3	Denvention I	4-6 Jul 1941
	War years	1942-1945
4	Pacificon I	30 Aug-1 Sep 1946
5	Philcon I	30 Aug-1 Sep 1947
6	Torcon I	3-5 Jul 1948
7	Cinvention	3-5 Sep 1949
8	NorWesCon	1-4 Sep 1950
9	Nolacon I	1-3 Sep 1951
10	TASFiC	30 Aug-1 Sep 1952
11	11th Worldcon	5-7 Sep 1953
12	SFCon	3-6 Sep 1954
13	Clevention	2-5 Sep 1955
14	NyCon II	31 Aug-3 Sep 1956
15	Loncon I	6-9 Sep 1957
16	Solacon	29 Aug-1 Sep 1958
17	Detention	4-7 Sep 1959
18	Pittcon	3-5 Sept 1960
19	Seacon	2-4 Sep 1961
20	Chicon III	31 Aug-3 Sep 1962
21	Discon I	31 Aug-2 Sep 1963
22	Pacificon II	4-7 Sep 1964
23	Loncon II	27-30 Aug 1965
24	Tricon	1-5 Sep 1966
25	Nycon 3	31 Aug-4 Sep 1967
26	Baycon	29 Aug-2 Sep 1968
27	St. Louiscon	28 Aug-1 Sep 1969
28	Heicon '70	20-24 Aug 1970
29	Noreascon I	2-6 Sep 1971
30	L.A.Con I	1-4 Sep 1972
31	Torcon II	31 Aug-3 Sep 1973
32	Discon II	29 Aug-2 Sep 1974
33	Aussiecon One	14-17 Aug 1975
34	MidAmeriCon	2-6 Sep 1976
35	SunCon	2-5 Sep 1977
36	IguanaCon II	30 Aug-4 Sep 1978
37	Seacon '79	23-26 Aug 1979
38	Noreascon Two	29 Aug-1 Sep 1980
39	Denvention Two	3-7 Sep 1981
40	Chicon IV	2-6 Sep 1982
41	ConStellation	1-5 Sep 1983
42	L.A.con II	30 Aug-3 Sep 1984
43	Aussiecon Two	22-26 Aug 1985
44	ConFederation	28 Aug-1 Sep 1986
45	Conspiracy '87	27 Aug-1 Sep 1987
46	Nolacon II	1-5 Sep 1988
47	Noreascon 3	31 Aug-4 Sep 1989
48	ConFiction	23-27 Aug 1990
49	Chicon V	29 Aug-2 Sep 1991
50	MagiCon	3-7 Sep 1992
51	ConFrancisco	2-6 Sep 1993
52	ConAdian	1-5 Sep 1994
53	Intersection	24-28 Aug 1995
54	L.A.con III	29 Aug-2 Sep 1996
55	LoneStarCon 2	28 Aug-1 Sep 1997
56	BucConeer	5-9 Aug 1998
57	Aussiecon Three	2-6 Sep 1999
58	Chicon 2000	31 Aug-4 Sep 2000
59	The Millennium Philcon	30 Aug-3 Sep 2001
60	ConJosé	29 Aug-2 Sep 2002
61	Torcon 3	28 Aug-1 Sep 2003
62	Noreascon 4	2-6 Sep 2004
63	Interaction	4-8 Aug 2005
64	L.A.con IV	23-27 Aug 2006
65	Nippon 2007	30 Aug-3 Sep 2007
66	Denvention 3	6-10 Aug 2008
67	Anticipation	6-10 Aug 2009
68	Aussiecon 4	2-6 Sep 2010
69	Renovation	17-21 Aug 2011
70	Chicon 7	30 Aug-3 Sep 2012
71	LoneStarCon 3