Final answer:
Byzantine scholars preserved Greek and Roman writings, converted the Slavs to Catholicism, and contributed to the intellectual and artistic transformation of Western Europe.
Step-by-step explanation:
Byzantine scholars made significant contributions to the modern world in several ways. Firstly, they played a crucial role in preserving Greek and Roman writings. After the fall of the Western Roman Empire, Byzantine scholars and emigrants brought with them the knowledge of ancient Greece and Rome, including works by Plato and Aristotle, which greatly influenced the Italian Renaissance. Secondly, Byzantine scholars contributed to the spread of Christianity by converting the Slavs to Catholicism through the creation of the Cyrillic alphabet and the translation of Greek liturgy. Lastly, Byzantine scholars' migration to Italy after the fall of Constantinople in 1453 contributed to the intellectual and artistic transformation of Western Europe.