Dag Hammarskjöld

Dag Hammarskjöld was a Swedish economist and diplomat who served as the second Secretary-General of the United Nations from 1953 until his death in 1961. He strengthened the UN Secretariat and helped develop peacekeeping and preventive diplomacy during crises including Suez and the Congo. A member of the Swedish Academy, he was also the author of *Markings*, a posthumously published journal of spiritual and personal reflections. He received the 1961 Nobel Peace Prize posthumously for advancing the UN’s role in international peace.