north and northeast. Russian philologist Vladimir Toporov believes that during 1000–800 BC Proto-Germanic people began expanding into the western Baltic territory starting from the Pasłęka River. Later on, the Baltic area began shrinking even more due to the migration of the Goths. During the migration period Slavic people began expanding into the northern and eastern territories of the Balts. From 11th to 12th century, Russian scriptures mention ongoing battles near Moscow with Eastern Galindians. Since 1225, the conquests of the Teutonic Order in the current Baltic region intensified and later on resulted in the extinction of the Old Prussians in the 18th century. Relationship with other language groups Slavic languages Linguists are considering the possibility of present-day Baltic and Slavic languages having a common point of linguistic development. Some supporters of the Baltic and Slavic languages unity even claim that Proto-Baltic branch did not exist, suggesting that Proto-Balto-Slavic split into three language groups: Eastern Baltic, Western Baltic and Proto-Slavic. However, critics point out that the phonology and morphology, which is shared by all known Baltic languages, is much more archaic than that of Proto-Slavic, retaining many features attributed to other attested Indo-European languages roughly 3000 years ago. It is also known that some Baltic and Slavic languages have more in common that others: Old Prussian and Latvian share more commonalities with Slavic languages than Lithuanian. Some similarities between Baltic and Slavic can be found on all levels of linguistic analysis, which led German philologist August Schleicher to believe that there was indeed a common point of development. French linguist Antoine Meillet, however, rejected this idea and claimed that similarities between Baltic and Slavic languages were a result of close contact. Meanwhile, Latvian linguist Jānis Endzelīns suggested that following the split of PIE, Baltic and Slavic languages evolved independently, but later experienced a common period of greater contact. Jan Michał Rozwadowski proposed that the two language groups were indeed a unity after the division of Indo-European, but also suggested that after the two had divided into separate entities (Baltic and Slavic), they had posterior contact. Russian liguists Vladimir Toporov and Vyacheslav Ivanov believed that Proto-Slavic language formed from the peripheral-type Baltic dialects. Germanic languages There is some vocabulary (about 60 words) that Baltic and Germanic languages share, excluding loanwords. Common vocabulary mostly includes words relating to work, equipment, agriculture etc., such as Proto-Baltic *darbas, meaning 'work' and Proto-Germanic *derbaz, meaning 'bold,