The presence of numerous Slavs and the close contact between its citizens and the surrounding Slav communities may have given Cyril and Methodius the opportunity to acquire an intimate knowledge of the language of the southern Slavs.
और मिथोडीअस की जीवन - कथा लिखनेवाला एक व्यक्‍ति यह भी लिखता है कि उनकी माँ स्लाव जाति की थी ।