12/16: Pakistan marks anniversary of talban school massacre

Norway marks massacre anniversary

France marks first anniversary of Paris massacre

Srebrenica: Bosnia marks 20 year massacre anniversary

China marks Nanjing massacre anniversary

Violence marks three-month anniversary of feared Mexican student massacre

Tulsa race massacre: Joe Biden marks 100th anniversary in emotional speech

China marks 80th anniversary of Nanjing massacre

Iran marks 43rd anniversary of 'black Friday' massacre

Chinese President Xi calls for end to hatred as China marks Nanjing Massacre anniversary

Kenya marks Garissa university massacre anniversary

PH marks 12th anniversary of Maguindanao massacre

Newtown marks six months anniversary of massacre

Nawaz Sharif marks first anniversary of Peshawar school massacre

Philippines marks anniversary of massacre with calls for justice

Bosnian youth marks 20th anniversary of Srebrenica massacre

Srebrenica marks massacre anniversary

US marks anniversary of Sandy Hook massacre

Norway marks anniversary of Breivik's massacre

Philippines marks anniversary of massacre with calls for justice

Las Vegas marks the first anniversary of the massacre

From the South - Mexico Marks Anniversary of 1968 Student Massacre

China marks Nanjing Massacre anniversary

Croatia marks 25th anniversary of Vukovar massacre

April 24th marks the 103rd anniversary of Metz Yeghern, or Great Evil, described as the horrific massacre of innocent people in Armenia. Many historians say up

China marks 80th anniversary of Nanjing massacre