The Hegira is the journey or migration of Muhammad (the Islamic prophet) and his followers from Mecca to Yathrib in 622. After getting a warning from a group he and his followers surreptitiously left his residence in Mecca to migrate to Yathrib which was 320 km north of Mecca. In his migration, he was followed by Abu Bakr who later became one of the Caliphs.
Answer:
No, while Arabs have made important contributions to Western Culture, their contributions have not been the most important. The most important contributions to western culture come from the Ancient Classical World: Ancient Greece and Ancient Rome, and from European contributions of the Middle Ages and the Modern Era.