December 27, 2007 - Benazir Bhutto is assassinated during a rally in Rawalpindi, Pakistan.

December 30, 2007 - Is named co-chair of the Pakistan Peoples Party along with son Bilawal Bhutto Zardari.

September 6, 2008 - Zardari is appointed president of Pakistan by the Parliament after Musharraf's August resignation.

September 9, 2008 - Is sworn in. During the ceremony, he declares he is accepting the presidency in his wife's name.

September 26, 2008 - Addresses the United Nations General Assembly in New York.

December 19, 2011 - Returns to Pakistan from Dubai after receiving medical treatment for a heart condition.