Complex sentence: It's own domain was came into existence on June 3,2002 but the first three articles were written in August 2004 and in July 2012, there were 2,400 articles.
Split into simpler sentences: It's own domain was came into existence on June 3,2002 but it was not until August 2004 that the first three articles were written. In July 2012, there were 2,400 articles.