Claim: The production of Tomyski hops (a variety of hops that is grown neither in Poland nor in Germany) had a profound economic impact on what had once been one of the poorest areas in the region, but it declined starting in the 1890s and continued until the conclusion of World War I.
Evidence: Tomyski or Nowotomyski (German: Neutomischel) is a variety of hops that is grown in Poland.