The Baltic or Letto-Lithuanian languages have already been mentioned, and little more need be said save that they have long felt the double pressure of Teutonic and Slavonic influences and have absorbed words from both. Apart from them, the languages spoken are largely of the Slavonic family, and it is frequently said that the Slavonic languages are less distinct from one another than are the languages of the Romance and the Teutonic families. They have been less influenced by written forms than have the latter; oral tradition has counted for more, and differences have consequently not become so fixed as farther west. There is a certain amount of dispute as to the primary home of Slavonic speech, but it seems increasingly likely that it arose as an adaptation of older forms of Indo-European languages by the people of the Carpathian arc and the Polish platform on its north-eastern flank, and that it spread thence especially in the post-Roman centuries. Schlüter has found reason to believe in a considerable movement from the hills to the valleys and plains in those centuries, and with this we may connect progress of forest clearings and spread of Slav languages, especially towards Muscovy. Most of the regions of Slav speech came into touch with Christianity first of all through Constantinople, but in the case of the more westerly ones the influence of the Roman Church outweighed that of its eastern sister before many centuries had passed, and the Roman principles spread eastward as far as the bounds of what has been called above 'Europe-of-the-Sea'. {62} 8 _The Slav-speaking Peoples and the Borders of the East_