In addition to this...
In addition to this, political relationships between some European and Islamic governments helped the transmission of the Islamic culture and civilization. Montgomery Watt says: “Charlemagne was in diplomatic relations with the caliph of Baghdad, Harun ar-Rashid, as well as with the latter’s enemy, the Umayyad emir of Spain; and by this channel some knowledge of the vastness and power of the Islamic world might have reached Europe.” [2.
Crusades] One of the tragic events in the relation between Muslims and Europeans were the Crusades. The Crusade wars started around 1095 and continued up to 1291. Despite the fact that this long war had devastating losses and many casualties, by entering Europeans in the Islamic world and their close connection with Muslims they became acquainted with various aspects of Islamic culture and civilization and tried to adopt it and import it to Europe.
As an example, when Fredrick II conquered Jerusalem, he was astonished by Islamic architecture. In his court there were many Muslim mathematicians and philosophers. He learned Arabic and employed translators to translate Islamic works. He himself was interested in Islamic sciences. It is well known that he sent some philosophical questions to Ibn Sabin de Murci, a Muslim philosopher of Spain, and received the answers, which is known as Sicilian Questions.
Trade Another way of Islamic cultural impact on Europe was through trade. Both Muslim and European merchants who imported goods to Europe from the Islamic world were effective in this issue. Muslim merchants in different parts of the world especially in East Asia played an important role in the expansion of Islam. As Watt says, Islamic culture did not developed in Europe only through Muslim presence, but the export of goods which were produced in Muslim lands was also effective in this regard.
It is notable that Jewish merchants were also active in this area. They were familiar with different languages and played the role of medium between Islamic and Christian cultures. Among the skills related to trade that developed in Europe were shipbuilding and seafaring. Seafaring was advanced among Muslims. From Kilwa in east Africa through Malaka Strait in Malaysia was covered by Muslim seafarers.
In the second half of twelve century, Spanish and Portuguese shipbuilders more than others learned from Muslim experiences in this area. One of the Muslim contributions in this regard was the mariner’s compass.