1911 Encyclopædia Britannica, Volume 18… (1911)
“ At this period there seemed a strong probability of the junction of the north-western and south-eastern Slavs, and the formation of a great Slavonic power to east of the German empire. This prospect, however, was dissipated by the invasions of the Magyar hordes in the 10th century, the brunt of which was borne by Moravia. The invaders were encouraged by the German monarchs and aided by the dissensions and mismanagement of the successors of Svatopluk, and in a short time completely subdued the eastern part of Great Moravia. ”
