Polish government-in-exile ended in 1990.
The word "end" in Polish is "koniec".
You can say "the end" in Polish as "koniec."
Polish marka ended in 1924.
Polish Brethren ended in 1658.
Polish rubel ended in 1917.
Free Polish University ended in 1952.
Polish Legion in Finland ended in 1918.
Polish Auxiliary Corps ended in 1918.
Polish Journal of Chemistry ended in 2009.
Commission for Polish Relief ended in 1949.
Polish I Corps in Russia ended in 1918.
Polish Academy of Literature ended in 1939.