Mezue ahịrịokwu na-esonụ: Richard Conrad Lukas (amụrụ 1937) bụ onye America na-akọ akụkọ ihe mere eme na onye edemede nke akwụkwọ na isiokwu banyere agha, diplomatic, Polish, na Polish-American history. Ọ bụ ọkachamara n'akụkọ ihe mere eme nke
Poland n'oge Agha Ụwa nke Abụọ.