Complex sentence: The Transylvanian School created the current Latin-based Romanian alphabet, largely derived from the Italian and the French alphabets, which replaced the medieval Romanian Cyrillic alphabet, imposed by the Bulgarian Empire during the 10th century over the ancient latin one.
Split into simpler sentences: The Transylvanian School created the current Latin-based Romanian alphabet, largely derived from the Italian and the French alphabets. This Latin-based alphabet replaced the medieval Romanian Cyrillic alphabet, imposed by the Bulgarian Empire during the 10th century over the ancient latin one.