July 3, 2004 (Saturday)
- Occupation of Iraq: The Islamic extremist group Jaish Ansar al-Sunna has reportedly beheaded U.S. Marine Corporal Wassef Ali Hassoun. The group claims that it will release a videotape recording of the execution in the coming days. (Reuters)[permanent dead link] (Reuters) Archived 2005-04-08 at the Wayback Machine
- The new metro in Bangkok, Thailand, officially opens. It is overcrowded within 30 minutes. (The Star)
- 17-year-old Maria Sharapova defeats Serena Williams 6–1, 6–4 in the Wimbledon Championships women's tennis final to become the first Russian Wimbledon champion. (BBC Sport)