Ignacy Mościcki

President of Poland from 1926 to 1939

Ignacy Mościcki (Polish: [iɡˈnat͡sɨ mɔɕˈt͡ɕit͡skʲi] ; 1 December 1867 – 2 October 1946) was a Polish chemist and politician who was the country's president from 1926 to 1939. He was the longest serving president in Polish history.

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