History of the Major Trade Routes - Summary on a Map

Trade began with local exchanges and gradually expanded. The Incense Route, active since 1800 BC, connected the Indian subcontinent (spices) with the Arabian Peninsula (incense), transported by dromedary caravans to Petra. Navigators also traveled along coasts for trade. In 331 BC, Alexander the Great founded Alexandria, which became a major hub for trade between India and Europe.

China sought jade from East Turkestan, leading to early jade-tea exchanges. The Chinese emperor sent Zhang Qian west in 139 BC to form an alliance against the Xiongnu, leading to the discovery of Central Asian peoples and their products, including majestic horses. To obtain these horses, China traded silk for the first time, opening the Silk Road. The Roman Republic's expansion into Egypt and contact with Aksum merchants led to a new sea route to India, bypassing the Arabian Peninsula, and accelerating the decline of Arabian cities. Romans later extended the Silk Road throughout their empire after contact with the Parthians.

From 630 AD, Muslim conquests disrupted existing trade routes. By seizing Alexandria, Arabs cut the India-Constantinople route. A battle at Talas in 751 led to Arabs learning paper and silk manufacturing from Chinese prisoners. China shifted to safer sea routes, opening ports to foreign traders. Arabs established a vast commercial network, trading carpets, cobalt blue, horses (from their own region), porcelain from China, spices and precious stones from Southeast Asia/India, and gold, slaves, and ivory from Africa. They also obtained furs, honey, wood, and slaves from the north. This led to rapid development of Arab cities.

Turkic tribes, including the Seljuks, threatened Arab caliphates, seizing Jerusalem. Pope Urban II's call for crusades saw Italian republics gain commercial privileges by supplying Christians in the Near East. Venice diverted the 4th Crusade to Constantinople, pillaging it and allowing Italian republics to dominate Mediterranean trade. Northern European cities like Novgorod, Riga, and Scandinavian ports formed trade networks. In 1453, the Ottoman Turks seizing Constantinople destabilized trade routes with Asia, prompting Portugal to seek new maritime routes using caravels. They established trading posts along Africa, taking over slave and gold trades, aiming to bypass Africa to reach India. Spain explored westward, discovering America.

Portugal reached Calicut, gained monopoly in the Indian Ocean, and became wealthy by bringing Asian goods directly to Europe. The 1494 Tordesillas meridian divided new territories between Spain (west) and Portugal (east). Spanish conquistadors found new products in America like tomatoes, tobacco, and potatoes, but primarily focused on chocolate, precious metals, and pearls. Magellan's crew reached the Moluccas (nutmeg and cloves), leading to a new division line with Portugal. Spain colonized the Philippines, linking Manila to Acapulco via a newly discovered return route in the Pacific. Spanish silver from American mines was traded with Chinese merchants for spices, tea, silk, and porcelain in the Philippines, then transported back to Europe.

Other European powers like the Dutch, English, and French established trading posts and colonized Caribbean islands for sugar cane plantations, fueling a demand for labor. The triangular trade emerged: European goods (crockery, weapons, tools) were traded for slaves in Africa, slaves were transported to the Americas (sugar cane, coffee plantations, mines), and ships returned to Europe with sugar, tobacco, rum, and precious stones. This highly profitable trade resulted in 7-20 million Africans being transported to America over 200 years. The 19th century saw the gradual abolition of slavery. The Industrial Revolution in Great Britain, driven by the steam engine and mechanized loom, boosted textile production and cotton demand from India, the Caribbean, and Southern US. Improved iron and steel techniques, and the development of railroads and steamships, further transformed transportation and trade, strengthening British maritime and colonial dominance.

France obtained permission to build the Suez Canal, inaugurated in 1869, drastically shortening the sea route to India. European powers partitioned Africa in Berlin, exploiting its resources (gold, diamonds, ivory) and establishing plantations for rubber, coffee, cocoa, and tobacco. In 1904, the US acquired and completed the Panama Canal, opening in 1914, which significantly shortened maritime routes between the Pacific and Atlantic, giving the US control over this crucial passage.

World War I saw the rise of oil-powered technologies, leading to a boom in oil demand, especially after World War II, with discoveries in the Middle East and America. This abundant and cheap oil fueled globalization and intensified trade. The aviation boom enabled air transport of goods. However, regional instability, like the 1967 Six-Day War closing the Suez Canal, and 1970s oil shocks, pushed countries towards alternative energy sources like nuclear power, increasing demand for uranium. The 1970s and 1980s saw a boom in electronics and computer technologies, pioneered by the US and Japan. East Asian countries specialized in electronic components, making rare earths (metals for electronics) a strategic raw material, with vast deposits in China.

In 2001, China joined the WTO, attracting foreign companies with cheap labor and favorable investment policies. 'Made in China' textiles flooded markets, and many companies relocated factories to China, which became the 'world's factory' with explosive economic growth. In 2013, China began its 'New Silk Roads' initiative to secure raw material supplies and increase exports of manufactured goods, steel, and aluminum. This involves massive financing of global infrastructure (roads, railroads, seaports) to connect China to all continents, with plans for a Bering Strait tunnel and an inter-oceanic canal in Nicaragua. By 2049, China aims for 140 countries to be part of this initiative.

Arms and drug trade represent the world's largest clandestine trades, controlled by criminal networks. Opium poppies come from the Golden Triangle/Crescent, cannabis resin from Morocco, and cocaine from Colombia, primarily consumed in Europe and the US. Today's main legal maritime trade route circles the globe, passing through strategic straits and canals like the Panama and Suez Canals. The melting of Arctic ice due to climate change opens potential new, shorter, and tax-free maritime routes benefiting Russia and Canada. Major powers like the US, EU, and China (with its 'Polar Silk Road' initiative) are keenly aware of the geopolitical and commercial implications of these emerging Arctic passages.