(pen)o Overview (pen)-> (g)Causes of trade growth(pen) (pen)-> (li)Maritime technologies(pen) (pen)-> (p)Economic and political effects(pen) (pen)o (g)Causes of trade growth(pen) (pen)-> After 1200, older (lb)Indian Ocean(pen) routes grew in volume. (pen)-> Rising demand for spices and textiles drew (hp)merchants(pen). (pen)-> Chinese production supplied porcelain and silk exports. (pen)-> Muslim (hp)merchant(pen) networks linked distant port markets. (pen)-> Shared commercial ties eased credit and negotiation. (pen)-> Port rulers protected commerce to gain customs revenue. (pen)o (li)Maritime technologies(pen) (pen)-> Lateen sails helped ships tack against the wind. (pen)-> Chinese junks used sternpost rudders for steering. (pen)-> Magnetic compasses improved navigation offshore. (pen)-> Mariners shared shipbuilding and navigational knowledge. (pen)-> Larger ships moved bulk cargo more cheaply than caravans. (pen)o (p)Economic and political effects(pen) (pen)-> Sea routes linked East Africa, Arabia, India, and China. (pen)-> India exported cotton cloth; Southeast Asia sent spices. (pen)-> Swahili ports exported gold and ivory from the interior. (pen)-> (g)Trade(pen) wealth expanded cities such as Kilwa and Calicut. (pen)-> Malacca's strait location enriched its (g)trading(pen) sultanate. (pen)-> Zheng He's voyages (1405-1433) extended Ming diplomacy. (pen)o Overview (pen)-> (li)Monsoons and maritime geography(pen) (pen)-> (hp)Merchant diasporas(pen) (pen)-> (hp)Cultural and environmental exchange(pen) (pen)o (li)Monsoons and maritime geography(pen) (pen)-> In c. 1200-1450, seasonal winds structured ocean (g)trade(pen). (pen)-> Summer (li)monsoons(pen) aided voyages from Arabia toward India. (pen)-> Winter wind reversals helped ships make return voyages. (pen)-> Predictable winds let sailors schedule long crossings. (pen)-> Waiting for wind changes prolonged (hp)merchants(pen)' port stays. (pen)-> Natural harbors and narrow straits concentrated traffic. (pen)o (hp)Merchant diasporas(pen) (pen)-> Seasonal stays fostered foreign (hp)merchant(pen) communities. (pen)-> Arab and Persian (hp)merchants(pen) settled in East African ports. (pen)-> Muslim traders also formed communities in Indian ports. (pen)-> (hp)Diaspora(pen) ties supplied contacts, credit, and market news. (pen)-> Intermarriage linked foreign (hp)merchants(pen) to local families. (pen)o (hp)Cultural and environmental exchange(pen) (pen)-> (hp)Merchant(pen) contacts spread Islam without universal conquest. (pen)-> Some Southeast Asian rulers adopted Islam and (g)trade(pen) ties. (pen)-> Swahili blended Bantu roots with Arabic loanwords. (pen)-> Coastal Islamic practices coexisted with local traditions. (pen)-> Sea (g)trade(pen) moved crops, including citrus, into new regions. (pen)-> Connected ports also enabled infectious disease to spread.