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The book contains systematic critique of the traditionalist model’s historiographical assumptions concerning the Spartan alliances in the VI and V century BCE. First chapter is devoted to the critique of the sources. In the second chapter we look at three areas where the original impulse for the creation of a coherent, uniform alliance around Sparta has been sought: Sparta’s helot problem, relations...

The editorial series Freshwater Fauna of Poland has existed since 1935. Up to now 22 volumes (in Polish) have been published, treating both vertebrate and invertebrate animals. Particular volumes contain rich general data concerning described taxa and detailed information on species, genera, families and orders. Integral parts of all volumes are identification keys. Thanks to such a way of presentation,...

The year 2017 marks the 100th anniversary of premature death of Marian Smoluchowski, an outstanding Polish physicist, a pioneer of the kinetic theory of matter currently known as statistical physics. On this occasion, we have published the volume containing: essays on Smoluchowski’s life and his contribution to science, translations into English of Marian Smoluchowski’s papers originally published...