The Polish language belongs to Western Slavonic languages Indo-European and the Czech Republic and Slovakia. It emerged from the proto-Slavic, as it is used as the mother tongue of all Slavic tribes in the past. Poland has developed as texts written in the Middle Ages do not understand 100 percent of the Polish contemporaries, and should be read with a dictionary of archaisms. At the time of the partitions of Poland (1795-1918) the Prussian and Russian conquerors tried to eradicate Polish identity, but his plans ultimately failed, and the Poles retained their language almost intact.