Wikipedia was launched in January 2001 by Jimmy Wales and Larry Sanger (Larry resigned later on). It has quickly grown into the largest reference website on the internet, financed by donations, with no advertising. Its multilingual content is free and written collaboratively by people worldwide, who contribute under a pseudonym. Its website is a wiki, which means that anyone can edit, correct, and improve information throughout the encyclopedia. The articles stay the property of their authors, and can be freely used according to the GFDL (GNU Free Documentation License) and the Creative Commons license. In December 2004, Wikipedia had 1.3 million articles (by 13,000 contributors) in 100 languages. In December 2006, Wikipedia was among the ten top sites on the web, with 6 million articles. In May 2007, Wikipedia had 7 million articles in 192 languages, including 1.8 million articles in English, 589,000 articles in German, 500,000 articles in French, 260,000 articles in Portuguese, and 236,000 articles in Spanish. In 2008, Wikipedia was in the top five websites. In september 2010, Wikipedia had 14 million articles in 272 languages, including 3.4 million articles in English, 1.1 million articles in German and 1 million articles in French. January 2001 > UNL (Universal Networking Language), a digital metalanguage project The UNDL Foundation (UNDL: Universal Networking Digital Language) was founded in January 2001 to develop and promote the UNL (Universal Networking Language) project. The UNL project was launched in mid-1990s as a main digital metalanguage project by the Institute of Advanced Studies (IAS) of the United Nations University (UNU) in Tokyo, Japan. As explained on the bilingual (English, Japanese) website in 1998: "UNL is a language that - with its companion 'enconverter' and 'deconverter' software - enables communication among peoples of differing native languages. It will reside, as a plug-in for popular web browsers, on the internet, and will be compatible with standard network servers." In 2000, 120 researchers worldwide were working on a multilingual project in 16 languages (Arabic, Brazilian, Chinese, English, French, German, Hindu, Indonesian, Italian, Japanese, Latvian, Mongolian, Russian, Spanish, Swahili, and Thai). January 2001 > The Cybook was launched as the first European ebook reader