- Wed, Jun 26
- Tolga Safer's birthday
- Harry Potter and the Philosopher's Stone book
- Ron tries to call Harry on the "fellytone"
- Thu, Jun 27
- Matthew Lewis's birthday
- Stephanie Norton's birthday
- Fri, Jun 28
- Dobby's birthday
- Sun, Jun 30
- Rebecca Gannam's birthday
- Dumbledore is murdered by Severus Snape
- Dumbledore and Harry go to cave for Horcrux
- Predrag Bjelac's birthday
- Mon, Jul 1
- Rufus Scrimgeour becomes Minister of Magic
- MuggleNet Interactive's anniversary
- “Aw, don’t worry, honey. Most guys think what you was thinking, first time they see me.”
- March 20, 2003 – The book cover art for Harry Potter and the Order of the Phoenix is released in the United States and United Kingdom. It was the first cover to create lots of hype in the Harry Potter fandom because by that point fansites were flourishing.
Did You Know
- There is a rumor that when the House Points Counter was built for the Harry Potter film series it caused a nation-wide shortage of Indian glass beads.