The sources are also unclear as to when Congress Poland (or Vistula land) officially ended; some argue that it ended when the German and Austro-Hungarian occupying authorities assumed control of the area during World War I; others, that it ended with the creation of the Kingdom of Poland in 1917; finally, some argue that it ended only with the creation of the independent Republic of Poland in ...
The Congress of the Communist Party of the Soviet Union (Russian: съезд КПСС) was the supreme decision-making body of the Communist Party of the Soviet Union. Its meetings served as convention of all party delegates and their predecessors.