Jan Czarnowski died in 1963.
Jan Czarnowski was born in 1883.
Hieronim Czarnowski died in 1902.
Stefan Czarnowski died in 1937.
Jan Nepomucen Czarnowski was a Polish historian, archaeologist, and ethnographer who is known for his works on Polish history, folklore, and archaeology. He is most recognized for his research and publications on the cultural heritage of Poland, particularly in the field of history and archaeology.
Hieronim Czarnowski was born in 1834.
Stefan Czarnowski was born in 1879.
Jan Steen died in 1679.
To test their hypothesis Czarnowski and Triantafyllou used the Scientific Method.Also since i mentioned if you are wondering the steps of the Scientific Method are:QuestionResearchHypothesisExperimentAnalyze your dataConclusion
Jan Rychlík died in 1964.
Jan Rypka died in 1968.
Jan Sierada died in 1943.
Jan Simons died in 2006.