The site has dramatically changed how people search for information online and boasts 13 million articles in total, when you count the versions in the other 271 languages.
Previously the Yongle Encyclopedia was the world’s largest encyclopedia, which was commissioned by the Chinese Ming Dynasty emperor, Yongle, in 1402 and completed by 1408.
Here, we round up this year's most-viewed Wikipedia articles, according to the website Wikistics:
1) Wiki (131,383 page hits per day)
2) The Beatles (111,896)
3) Michael Jackson (79,734)
4) Favicon.ico (78,077)
5) YouTube (72,318)
6) Wikipedia (52,542)
7) Barack Obama (49,401)
8) Deaths in 2009 (48,758)
9) United States (46,545)
10) Facebook (42,679)
11) Current events portal [http://en.wikipedia.org/wiki/Portal:Current_events] (40,962)
12) World War II (29,736)
13) Twitter (28,511)
14) Transformers: Revenge of the Fallen (28,395)
15) Slumdog Millionaire (26,755)
16) Lil Wayne (26,210)
17) Adolf Hitler (25,481)
18) India (25,380)
19) Transformers 2 (24,842)
20) Scrubs (TV series) (24,758)
21) Sex (24,754)
22) Rhianna (24,670)
23) United Kingdom (24,300)
24) Abrham Lincoln (23,743)
25) Heroes (TV series) (23,569)
26) Watchmen (film) (23,544)
27) Lady GaGa (23,376)
28) Star Trek (film) (22,990)
29) 2009 Swine Flu outbreak (22,968)
30) Featured content portal (22,829)
31) Megan Fox (22,573)
32) Naruto (22,573)
33) Australia (22,544)
34) Canada (22,437)
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