Cotton

• 1. Botanical Origins And Domestication

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  In the Nanchoc District of Peru, archaeologists uncovered evidence of Gossypium barbadense dating to the 7th-6th millennia BC. This discovery marks one of the earliest known uses of cotton in human history. The plant is a shrub native to tropical and subtropical regions around the world, including the Americas, Africa, Egypt, and India. The greatest diversity of wild cotton species is found in Mexico, followed by Australia and Africa. Cotton was independently domesticated in both the Old World and the New World. In Mexico, the domestication of Gossypium hirsutum occurred between 3400 and 2300 BC. People living between the Río Santiago and the Río Balsas grew, spun, wove, dyed, and sewed cotton during this period. They sent unused cotton to their Aztec rulers as tribute on a scale of approximately 15 million pounds annually. Cotton bolls from a cave near Tehuacán, Mexico, have been dated to as early as 5500 BC. These findings demonstrate that multiple civilizations developed cotton cultivation separately across different continents.

• 2. Ancient Textile Traditions

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  At the Neolithic site of Mehrgarh in Balochistan, Pakistan, researchers found a string of eight copper beads containing mineralized cotton thread. This artifact dates to the 6th millennium BC and represents the earliest known use of cotton in the Old World. A funerary chamber at Mehrgarh contained an adult male lying on his side with legs flexed backward and a young child at his feet. Next to the adult's left wrist were eight copper beads which had once formed a bracelet. Microscopic analysis revealed that each bead was made by beating and heating copper ore into a thin sheet rolled around a narrow rod. Inside one of these corroded beads lay a bundle of both unripe and ripe fibers wound together to make a thread. Fragments of cotton textiles and spindle whorls dated to the 3rd millennia BC have also been found at Mohenjo-daro in Sindh, Pakistan. In Jordan, remnant cotton fibers dyed in various colors were discovered at Tel Tsaf in the Jordan Valley, dated to 5200 BCE. Cotton cloth production reached a high level in Meroë, Sudan, during the 4th century BC. The export of textiles became one of the primary sources of wealth for the Kingdom of Kush.

• 3. The Industrial Revolution And Global Trade

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  In 1793, American Eli Whitney invented the modern cotton gin, reducing processing time from over 600 hours per bale to just a dozen or so. Before this invention, cotton fibers had to be pulled from seeds tediously by hand. By the late 18th century, crude ginning machines existed but remained uneconomical without mechanization. Lewis Paul and John Wyatt patented the roller spinning machine in 1738 in Birmingham, England. James Hargreaves' spinning jenny appeared in 1764, followed by Richard Arkwright's spinning frame in 1769 and Samuel Crompton's spinning mule in 1775. Manchester acquired the nickname Cottonopolis due to the industry's omnipresence within the city. British traders developed a commercial chain purchasing raw cotton from colonial plantations, processing it into cloth in Lancashire mills, then exporting on British ships to captive markets in West Africa, India, and China. By the 1840s, India could no longer supply the vast quantities needed by mechanized British factories. The United States emerged as the leading exporter with sales reaching $4.9 billion annually. Britain eventually surpassed India as the world's leading cotton textile manufacturer in the 19th century.

• 4. Labor Systems And Social Impact

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  In the United States, cultivating and harvesting cotton became the leading occupation of enslaved African Americans before 1865. Russell Griffin of California farmed one of the biggest cotton operations, producing over sixty thousand bales. During the American Civil War, exports slumped due to Union blockades and Confederate strategic decisions to cut exports. After slavery ended in 1865, sharecropping evolved across the South where landless farmers worked land owned by others for shares of profits. In Xinjiang, China, cotton continues to be picked by hand, allegedly using forced labor. Workers twist and pluck bolls of white fiber in hot, grueling conditions. The Environmental Justice Foundation has campaigned against prevalent use of forced child and adult labor in Uzbekistan, the world's third largest cotton exporter. Cotton provides livelihoods for up to 1 billion people globally, including 100 million smallholder farmers who cultivate it. Many farmers in developing countries receive low prices or struggle to compete with developed nations. Brazil requested consultations with the US regarding prohibited subsidies on the 27th of September 2002. Four least-developed African countries known as Cotton-4, Benin, Burkina Faso, Chad, and Mali, led negotiations to reduce US cotton subsidies.

• 5. Agricultural Science And Sustainability

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  Globally, cotton requires 8,000 to 10,000 liters of water for one kilogram of fiber production. In dry areas like parts of India, this requirement may reach 22,500 liters per kilogram. Cotton cultivation contributes to desertification in Uzbekistan where improper irrigation practices have damaged the Aral Sea ecosystem. Genetically modified Bt cotton was developed to reduce heavy reliance on pesticides. The bacterium Bacillus thuringiensis naturally produces a chemical harmful only to specific insect larvae while remaining harmless to other life forms. A 2006 Cornell study found that after seven years, secondary pests had increased in Chinese Bt cotton farming, necessitating pesticide use at similar levels to non-Bt varieties. However, a 2012 Chinese study concluded that Bt cotton halved pesticide use and doubled beneficial insect populations. In 2011, GM cotton covered 25 million hectares worldwide, representing 69% of total cotton area planted. Australia achieved 95% GM adoption by 2009, making it the fifth largest GM cotton producer globally. Organic cotton plantations in the United States must enforce National Organic Program standards prohibiting synthetic chemicals. As of 2007, 265,517 bales of organic cotton were produced across 24 countries with annual growth exceeding 50%.