The educators created a system of Old Church Slavonic alphabet and language.Thus, the rich Byzantine civilization has become accessible and comprehensible to all the Slavs who received the possibility to read Scripture and prayer books in Cyrillic and shape their distinctive culture.The Day of Slavic Written Language and Culture is celebrated as an official holiday for the 30th time.A traditional religious procession will be organized from the Holy Spirit Cathedral inMinskto the place of the first Orthodox church inBelarus.