Arabic is a Central Semitic language that first emerged in the Iron Age in northwestern Arabia. It is now the lingua franca of the Arab world. The language is named after Arabs, the people who lived in northwestern Arabia, and in the Sinai peninsula. At the time of the Middle Ages, Literary Arabic was a major source of communication with Europe on subjects like science, mathematics, and philosophy. This is why many European languages have borrowed many words from the Arabic language. The influence of Arabic language mainly in terms of its vocabulary is seen in European languages like Portuguese and Spanish.