lands. The Polish language was banned from public use, and ethnically Polish children punished at school for speaking Polish. Poles were subjected to a wave of forceful evictions (Rugi Pruskie). The German government financed and encouraged settlement of ethnic Germans into those areas aiming at their geopolitical germanisation. The Prussian Landtag passed laws against Catholics. Toward the end of World War I during Poland's fight for independence, Imperial Germany made further attempts to take control over the territories of Congress Poland, aiming at ethnic cleansing of up to 3 million Jewish and Polish people which was meant to be followed by a new wave of settlement by ethnic Germans. In August 1914, the German imperial army destroyed the city of Kalisz, chasing out tens of thousands of its Polish citizens. Interwar Period (1918–39) After Poland regained its independence as the Second Republic at the end of World War I, the question of new Polish borders could not have been easily settled against the will of her former long-term occupiers. Poles continued to be persecuted in the disputed territories, especially in Silesia. The German campaign of discrimination contributed to the Silesian Uprisings, where Polish workers were openly threatened with losing their jobs and pensions if they voted for Poland in the Upper Silesia plebiscite. At the Versailles Peace Conference of 1919, British historian and politician Lewis Bernstein Namier, who served as part of the British delegation, was seen as one of the biggest enemies of the newly independent Polish state in the British political sphere and in the newly-independent Poland. Namier modified the previously-proposed Curzon line by detaching the city of Lwów from Poland with a version called Curzon Line "A". It was sent to Soviet diplomatic representatives for acceptance. The earlier compromised version of Curzon line which was debated at the Spa Conference of 1920 was renamed Curzon Line "B". In the politics of inter-war Germany, anti-Polish feelings ran high. The American historian Gerhard Weinberg observed that for many Germans in the Weimar Republic, "Poland was an abomination", Poles were "an East European species of cockroach", Poland was usually described as a Saisonstaat (a state for a season), and Germans used the phrase "Polish economy" (polnische Wirtschaft) for a situation of hopeless muddle. Weinberg noted that in the 1920s–30s, leading German politicians refused to accept Poland as a legitimate nation, and hoped instead to partition Poland, probably with the help