This timeline of the 2009 Influenza Pandemic runs from the first described cases in California in April 2009 to July 10th 2010 when the WHO Director General declared that the pandemic was over. It describes events from the perspective of European Union and European Economic Area institutions and countries. However it also contains global events of relevance to Europe, such as declarations of phase changes. Where possible, links are given to primary published documentation. Events, decisions and meetings taking place at a European Level are especially emphasised.