Pope Pope Benedict XVI names John of Avila and Hildegard of Bingen the 34th and 35th doctors of the Catholic church.
Venezuela Voters in Venezuela go to the polls for a presidential election, with Hugo Chávez of the United Socialist Party of Venezuela and Henrique Capriles Radonski of the opposing Justice First party both competing for the presidency.
Antonov An-12 An Antonov An-12 aircraft belonging to the Sudanese military crashes southwest of the capital Khartoum, killing at least 13 of the 22 people on board.
Afghanistan On the 11th anniversary of the U.S.-led invasion of Afghanistan, two activists are detained at Ireland's Shannon Airport during a protest against U.S. drone strikes in Pakistan.
Mark Rothko A Mark Rothko Seagram mural on display at the Tate Modern is attacked at about 15:25 BST.