-Hanseatic League: Medieval commercial and defensive confederation of merchant guilds and market to wns developed in the Baltic and North Sea region from the 1200s. The Hanseatic League was an alliance of more than 100 northern European cities that banded together for mutual trade protection and economic opportunity. -Trans-Saharan trade route: Trades composed mainly of gold and salt, later along with other Islamic products (main city Timbuktu) still flourished in this region due to two specific factors, being oases and use of camels. -Silk Road: Basic, China-Arabia-Europe with other countries e.g. India SE Asia and Africa too. Has role in bringing cultures and peoples in contact with each other, and facilitating exchange between them. On a practical level, merchants had to learn the languages and customs of the countries. On a cultural and scientific level, the silk road promoted the diffusion and interactions of cultures, traditions, along with scientific knowledges and technologies, influencing other civilization growths. -Cultural Interaction: Cultural interaction was a vital aspect of material exchange. This includes the diffusion of religions (Islam and Christianity, along with some Buddhist and Hinduist merchants from India), cultural customs, humanistic thoughts, traditions, and languages. -dhows: Traders from Arabia, Gujarat, and other coastal areas used triangle-sailed dhows to harness the seasonal monsoon winds. Special type of ship. -domestication of the camel: Domestication of the camel helped bring coastal trade goods such as silk, porcelain, spices, incense, and ivory to inland empires. camels are native to Africa and can travel long distances without needing to stop for water. Together with oases these two helped support and popularize Trans-Saharan trade. -exchange of religions: Islam to South Asia, North Africa, and other major parts of the Arab sphere of influence; Christianity in Europe and other scattered parts (ports mainly) around the world, e.g. Hormuz, Ethiopia); Hinduism, Buddhism, and Jainism spread by great Indian merchants around S, E and SE Asia. -Muslim trade: The rise of the Umayyad (661–750 CE) and Abbasid (750–1258) caliphates on the Arabian Peninsula provided a powerful western node for the trade routes. In addition, Islam valued merchants—the Prophet Muhammad himself was a trader and caravan leader—and wealthy Muslim cities created an enormous demand for luxury goods. -Chinese role in Indian Ocean: The Tang (618–907) and Song (960–1279) dynasties in China also emphasized trade and industry, developing strong trade ties along the landbased Silk Roads, and encouraging maritime trade. The Song rulers even created a powerful imperial navy to control piracy on the eastern end of the route. For centuries, China had mostly allowed foreign traders to come to it. After all, everyone wanted Chinese goods, and foreigners were more than willing to take the time and trouble of visiting coastal China to procure fine silks, porcelain, and other items. In 1405, however, the Yongle Emperor of China's new Ming Dynasty sent out the first of seven expeditions to visit all of the empire's major trading partners around the Indian Ocean. The Ming treasure ships under Admiral Zheng He traveled all the way to East Africa, bring back emissaries and trade goods from across the region.