(pen)o Overview (pen)-> (g)Shared drivers of expansion(pen) (pen)-> (li)Transport and geographic differences(pen) (pen)-> (p)Goods and commercial institutions(pen) (pen)o (g)Shared drivers of expansion(pen) (pen)-> c. 1200-1450: all three (lb)networks(pen) grew on older routes. (pen)-> Silk Roads, Indian Ocean, and Sahara linked regions. (pen)-> Demand for foreign (p)goods(pen) drew merchants into all three. (pen)-> Mongol protection eased Silk Road travel across Eurasia. (pen)-> Mali secured Saharan routes; gold trade funded rulers. (pen)-> Port rulers fostered ocean trade to collect customs. (pen)o (li)Transport and geographic differences(pen) (pen)-> Silk Roads crossed Eurasia using overland caravans. (pen)-> Saharan caravans linked West Africa to North Africa. (pen)-> Camels enabled both land (lb)networks(pen) to cross dry regions. (pen)-> Ocean sailors timed voyages to seasonal monsoon winds. (pen)-> Compasses and improved ships made sea travel easier. (pen)-> Ships carried larger loads at lower cost than caravans. (pen)o (p)Goods and commercial institutions(pen) (pen)-> Land costs favored valuable (p)goods(pen): silk, gold, spices. (pen)-> Ocean ships also carried bulk (p)goods(pen), including timber. (pen)-> Saharan trade paired West African gold with desert salt. (pen)-> Caravanserai sheltered traders; ports supplied ships. (pen)-> Credit and merchant ties reduced long-distance risks. (pen)o Overview (pen)-> (hp)Cultural and technological diffusion(pen) (pen)-> (hp)Environmental consequences(pen) (pen)-> (pu)Uneven integration and continuity(pen) (pen)o (hp)Cultural and technological diffusion(pen) (pen)-> c. 1200-1450: all (lb)networks(pen) moved ideas as well as (p)goods(pen). (pen)-> Muslim merchants spread Islam across all three (lb)networks(pen). (pen)-> Sufis aided conversion in Central and Southeast Asia. (pen)-> Mali's rulers adopted Islam but local beliefs persisted. (pen)-> Ocean diasporas fostered Swahili Islamic coastal culture. (pen)-> Silk Roads carried Chinese gunpowder knowledge westward. (pen)o (hp)Environmental consequences(pen) (pen)-> Eurasian routes helped spread plague in the 1300s. (pen)-> Overland and sea links carried infection toward Europe. (pen)-> Black Death deaths disrupted labor and raised some wages. (pen)-> Saharan (lb)exchange(pen) did not (g)share(pen) Europe's plague impact. (pen)-> Ocean (lb)exchange(pen) spread crops such as bananas to Africa. (pen)-> New crops supported population growth where soils suited. (pen)o (pu)Uneven integration and continuity(pen) (pen)-> All (lb)networks(pen) enriched trading cities and merchant elites. (pen)-> Samarkand, Kilwa, and Timbuktu grew as (lb)exchange(pen) centers. (pen)-> Ocean trade linked many states, not one unifying empire. (pen)-> Mongol fragmentation weakened Silk Road protections. (pen)-> Despite growth, local trade and older beliefs persisted.