Edmund Jan Osmańczyk (10 August 1913 – 4 October 1989), was a Polish writer, author of Encyclopedia of the United Nations and International Agreements.
During the interwar period he would contribute to the Union of Poles in Germany, consisting out of Polish immigrants in the Ruhr area (Ruhr Poles) and other industrial centres, as well as out of Polish minority living in villages in the German-Polish 1919–1939 border region.
After the Nazi era, he would become a political deputy in communist Poland and promote Re-polonization of Recovered Territories.
[1] Not just content to wield a pen, Osmańczyk served as a soldier in the resistance force against the German occupation of Warsaw.
The reporting on these two events marked the beginning of phase in his journalistic career during which he became and foreign correspondent.