The last edition of ICDE took place in Istanbul, Turkey, and can be reached here. An overview of previous editions of ICDE is maintained by DBLP and can be reached here. The list of ICDE editions previous to Cancun is as follows: 

Event	Location	DBLP Link	Conference Link
23. ICDE 2007	Istanbul, Turkey
22. ICDE 2006	Atlanta, GA, USA
21. ICDE 2005	Tokyo, Japan
20. ICDE 2004	Boston, MA, USA
19. ICDE 2003	Bangalore, India
18. ICDE 2002	San Jose, CA, USA
17. ICDE 2001	Heidelberg, Germany
16. ICDE 2000	San Diego, CA, USA
15. ICDE 1999	Sydney, Australia
14. ICDE 1998	Orlando, FL, USA
13. ICDE 1997	Birmingham, UK
12. ICDE 1996	New Orleans, LA, USA
11. ICDE 1995	Taipei, Taiwan
10. ICDE 1994	Houston, Texas
9. ICDE 1993	Vienna, Austria
8. ICDE 1992	Tempe, AZ, USA
7. ICDE 1991	Kobe, Japan
6. ICDE 1990	Los Angeles, CA, USA
5. ICDE 1989	Los Angeles, CA, USA
4. ICDE 1988	Los Angeles, CA, USA
3. ICDE 1987	Los Angeles, CA, USA
2. ICDE 1986	Los Angeles, CA, USA
1. ICDE 1984	Los Angeles, CA, USA