The territory became part of the emerging Polish state under its first ruler Mieszko I around 967[3] and the battle at Julin Bridge took place nearby in 1170. The first mentioning of the village in chronicles dates back to 1243.[4] It remained a small fishing village in a sparsely populated area. This changed when the village came under Prussian rule and more people started to settle in the village. Due to its seaside location the village slowly transformed from a fishing village into a holiday resort.[4] At the end of the 19th century, salt springs were discovered, and the first sanatorium was established.[4] As a result the town became a popular spa town in the German Empire. In the 1930s, military barracks were built.[4] During World War II, in June 1944, American army conducted air raids on the Nazi German garrison in the village.[4] The historic church was destroyed in the final stages of the war[citation needed]. Polish troops entered in the city May 1945 and the German population was expelled or fled.[4] In accordance with the Potsdam Agreement the city became part of the Polish People's Republic.
In 1949 and 1950 in the local garrison there was a military hospital for Greeks and Macedonians wounded in the Greek Civil War.[4][5] In total, around 2,000 people were treated there.[5] Later on, in the 1950s, the hospital staff co-created the Military Medical Academy in Łódź.[4] In 1958 Dziwnów was granted urban-type settlement status and afterwards a port was built.[4] The development of the settlement in the following decades led to the granting of municipal rights in 2004.[4] From 1964 to 1986, the 1st Assault Battalion, which was considered one of the best trained units in the history of the Polish Army, was stationed in Dziwnów.[6]
^ abKubasiewicz, Izabela (2013). "Emigranci z Grecji w Polsce Ludowej. Wybrane aspekty z życia mniejszości". In Dworaczek, Kamil; Kamiński, Łukasz (eds.). Letnia Szkoła Historii Najnowszej 2012. Referaty (in Polish). Warszawa: IPN. pp. 116–117.