Complex sentence: Serbian Cyrillic was devised in 1814 by Serbian linguist Vuk Karadžić, who created the alphabet on phonemic principles, the Cyrillic itself has its origins in Cyril and Methodius' transformation of the Greek script in the 9th century.
Split into simpler sentences: Serbian Cyrillic was devised in 1814 by Serbian linguist Vuk Karadžić, who created the alphabet on phonemic principles. The Cyrillic script itself has its origins in Cyril and Methodius' transformation of the Greek script in the 9th century.