Coba jelasin Lihat juga dari Kongres Poland dalam bahasa melayu dong

Pengunduran Besar – pengunduran tentera Rusia daripada Poland pada tahun 1915

a  Sources agree that after the fall of the January Uprising in 1864, the autonomy of Congress Poland was drastically reduced. They disagree however on whether the Kingdom of Poland, colloquially known as Congress Poland, as a state, was officially replaced by Vistula Land (Privislinsky Krai), a province of the Russian Empire, as many sources still use the term Congress Poland for the post-1864 period. The sources are also unclear as to when Congress Poland (or Vistula land) officially ended; some argue it ended when the German and Austro-Hungarian occupying authorities assumed control; others, that it ended with the creation of the Kingdom of Poland in 1916; finally, some argue that it occurred only with the creation of the independent Republic of Poland in 1918. Examples:

Ludność Polski w XX Wieku = The Population of Poland in the 20th Century / Andrzej Gawryszewski. Warszawa: Polska Akademia Nauk, Instytut Geografii i Przestrzennego Zagospodorowania im. Stanisława Leszczyckiego, 2005 (Monografie; 5), p 539,

Mimo wprowadzenia oficjalnej nazwy Kraj Przywiślański terminy Królestwo Polskie, Królestwo Kongresowe lub w skrócie Kongresówka były nadal używane, zarówno w języku potocznym jak i w niektórych publikacjach.

Despite the official name Kraj Przywiślański terms such as, Kingdom of Poland, Congress Poland, or in short Kongresówka were still in use, both in everyday language and in some publications.