According to the Treaty of Versailles, the fate of Upper Silesia was to be settled by a plebiscite, which was held on 20 March 1921. Over 85% of the city's population voted to remain in Germany, while the population in the surrounding rural district voted 56% in favour of Poland. The Allies were in disagreement as to where the new border should be drawn, with the French proposal being more generous to Poland, while the British proposal was more favourable to Germany. After rumours spread that the British proposal was to be adopted by the League of Nations, the Third Silesian Uprising broke out, and as a result, Katowice became part of the Second Polish Republic with a certain level of autonomy (Silesian Parliament as a constituency and Silesian Voivodeship Council as the executive body). A wave of Jewish settlers from other areas of Poland, particularly Galicia arrived to the city. The Jewish community played an important role in the development of Katowice and in 1937 a new Jewish communal building was erected.