1. Facebook opening up to everyone
2. Nick Lachey and Jessica Simpson's split
The couple was only married for three years before deciding to go their separate ways.
3. The release of Harry Potter and the Half Blood Prince...
The sixth installment sold over 1.4 million copies on Amazon pre-order alone.
4. ...and the film adaptation of Harry Potter and the Goblet of Fire
5. Star Wars Episode III: Revenge of the Sith
6. Hurricane Katrina
Katrina killed nearly 2,000 people and caused an estimated $100 billion in damages.
7. Kanye West's INCREDIBLY awkward comment about George Bush
8. The series premiere of Grey's Anatomy
9. Brad & Jen's infamous split
10. Diddy hosting the MTV VMAs
11. The U.S. version of The Office
12. The first Twilight novel
13. The groundbreaking film Brokeback Mountain
14. The Tom Cruise couch incident
15. The Pink Razr
16. The Osbournes series finale
17. Honey Boo Boo, herself
18. The Xbox 360
19. The series finale of Everybody Loves Raymond
20. The series premiere of The Suite Life of Zack and Cody
21. The BFFs that were Nicole Richie and Lindsay Lohan
22. Blink-182's depressing split
23. The 40-Year-Old Virgin
24. Apple's unveiling of the 5th Generation iPod...
25. ...along with the iPod shuffle and the iPod nano
Six years later, Apple was forced to recall its first-generation iPod Nanos over concerns that the battery could possibly overheat.