How did Muslim merchants expand the world trade network at the end of the fifteenth century?
The only way of expanding the world during the contemporaries was by sea on vessels and this was well utilized by the Muslims, who were either Arab or Indian converts.
Because of the convenient location around the Mediterranean area the Muslim merchants expanded their world from the land of the five seas, Caspian Sea, Red Sea, Mediterranean Sea, Black Sea and the Arabian Sea. With well developed vessels with new navigational aids such as the astrolabe, an astronomical instrument, the merchants acquired themselves through these seas and expanded to the West to Venice and Vienna, to the North they ended up in