... The 9th International Astronomy Olympiad will be held on October 1-9, 2004. The dates are about the same as three and five years ago when the VI IAO and IV IAO took place in Crimea. ... Day of the official departure is October 9. ... IAO-2004 host and dates . ... The main feature and difference for the IX IAO is seriously longer period of issuing invitations for visas to Crimea. ... Note 2: LOC may send various types of invitations issued by organizations involved into IAO-2004 organization. ...