![UN Leader Dag Hammarskjold Died in Mysterious Circumstances in 1961. What Really Happened? - HISTORY UN Leader Dag Hammarskjold Died in Mysterious Circumstances in 1961. What Really Happened? - HISTORY](https://www.history.com/.image/t_share/MTY2MTcyOTY3NTgyMDUwMjUx/dag-hammarskjold-gettyimages-51349277.jpg)
UN Leader Dag Hammarskjold Died in Mysterious Circumstances in 1961. What Really Happened? - HISTORY
![Dag Hammarskjold Autograph. - Raptis Rare Books | Fine Rare and Antiquarian First Edition Books for Sale Dag Hammarskjold Autograph. - Raptis Rare Books | Fine Rare and Antiquarian First Edition Books for Sale](https://i0.wp.com/www.raptisrarebooks.com/images/119071/dag-hammarskjold-autograph.jpg?fit=562%2C800&ssl=1)
Dag Hammarskjold Autograph. - Raptis Rare Books | Fine Rare and Antiquarian First Edition Books for Sale
![UN Leader Dag Hammarskjold Died in Mysterious Circumstances in 1961. What Really Happened? - HISTORY UN Leader Dag Hammarskjold Died in Mysterious Circumstances in 1961. What Really Happened? - HISTORY](https://www.history.com/.image/t_share/MTY2MTczNTMyMzcwMjQ5Njc1/dag-hammarskjold-gettyimages-515549952.jpg)
UN Leader Dag Hammarskjold Died in Mysterious Circumstances in 1961. What Really Happened? - HISTORY
![Dag Hammarskjold (1905-1961). Swedish diplomat. 2nd Secretary-General of the United Nations, 1953-1961. Tapestry. UN. NY Stock Photo - Alamy Dag Hammarskjold (1905-1961). Swedish diplomat. 2nd Secretary-General of the United Nations, 1953-1961. Tapestry. UN. NY Stock Photo - Alamy](https://c8.alamy.com/comp/EP1JGT/dag-hammarskjold-1905-1961-swedish-diplomat-2nd-secretary-general-EP1JGT.jpg)
Dag Hammarskjold (1905-1961). Swedish diplomat. 2nd Secretary-General of the United Nations, 1953-1961. Tapestry. UN. NY Stock Photo - Alamy
![19 September 1961: UN secretary-general Dag Hammarskjold dies in plane crash | United Nations | The Guardian 19 September 1961: UN secretary-general Dag Hammarskjold dies in plane crash | United Nations | The Guardian](https://i.guim.co.uk/img/static/sys-images/Guardian/Pix/pictures/2011/7/26/1311691334921/Dag-Hammarskjold-007.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctZGVmYXVsdC5wbmc&enable=upscale&s=0e887efb9c886a6485722df38dca4948)