Original sentence: In the 13th century, the fragile unity of  Kievan Rus' disintegrated due to nomadic incursions from Asia, which climaxed with the Mongol Blue Horde's sacking of Kiev (1240), leaving a geopolitical vacuum in the region.Nonetheless, vibrant Belarusian culture flourished in the Orthodox fraternities of major Belarusian cities
Edited sentence: , Vitebsk) had been prohibited since 1480.Construction of Orthodox churches in some parts of Belarus (e.Despite such repressions, vibrant Belarusian culture flourished in the Orthodox fraternities of major Belarusian cities.In the 13th century, the fragile unity of Rus' disintegrated due to nomadic incursions from Asia, which climaxed with the Mongol Blue Horde's sacking of Kiev (1240), leaving a geopolitical vacuum in the region