Agriculture
The first farmers in the Levant began planting wild grains around 105,000 years ago. This early gathering phase eventually evolved into deliberate cultivation by 11,500 years ago. Independent domestication events occurred across at least eleven distinct global centers of origin. Sheep and goats were tamed between 13,000 and 11,000 years ago near Mesopotamia. Cattle emerged from wild aurochs in modern Turkey and Pakistan approximately 10,500 years ago. Pig production appeared in Eurasia when wild boar were first managed about 10,500 years ago. The potato was domesticated in the Andes between 10,000 and 7,000 years ago alongside beans and llamas. Sugarcane and root vegetables took shape in New Guinea around 9,000 years ago. Sorghum was cultivated in the Sahel region of Africa by 7,000 years ago. Cotton found its way to Peru by 5,600 years ago before being independently domesticated in Eurasia. Wild teosinte transformed into maize in Mesoamerica over a span of 4,000 years starting 10,000 years ago.
The Sumerians established villages around 8,000 BC relying on Tigris and Euphrates rivers for irrigation. Ploughs appear in pictographs dating back to 3,000 BC with seed-ploughs following by 2,300 BC. Ancient Egyptian agriculture depended on the Nile River and its seasonal flooding after 10,000 BC. Wheat and barley served as staple crops while flax and papyrus functioned as industrial materials. India saw wheat and jujube domestication by 9,000 BC followed by sheep and goats. The Mehrgarh culture kept cattle, sheep, and goats between 8,000 and 6,000 BC. An animal-drawn plough appeared in the Indus Valley civilization around 2,500 BC. China developed a nationwide granary system from the 5th century BC alongside widespread silk farming. Water-powered grain mills operated by the 1st century BC before irrigation systems expanded. Heavy ploughs with iron shares emerged in the late 2nd century AD and spread westward across Eurasia. European agriculture shifted toward self-sufficiency during the Middle Ages under feudalism. The Arab Agricultural Revolution introduced sugar, rice, cotton, and fruit trees like oranges to Europe after 1492. The Columbian Exchange brought maize, potatoes, tomatoes, and sweet potatoes to Europe from the Americas.
Intensive agriculture substituted synthetic fertilizers and pesticides for human labor starting in the 20th century. The Haber-Bosch method enabled industrial-scale synthesis of ammonium nitrate fertilizer. Global agricultural output reached approximately 11 billion tonnes of food by recent estimates. Small farms covering one hectare or less produce about one-third of the world's food supply. Five out of every six farms consist of fewer than five hectares yet occupy only 12% of all agricultural land. Large farms larger than 500 hectares encompass more than 70% of global farmland despite representing just 1% of total farm numbers. Nearly 40% of all global agricultural land exists on farms exceeding 500 hectares. Monocultures dominate contemporary production where single cultivars cover vast acreages. Soil degradation affects approximately 40% of the world's agricultural land seriously. Pesticide use rose 62% between 2000 and 2021 with the Americas accounting for half that usage. The Dust Bowl of the 1930s resulted from unsustainable farming practices in North America. European Union certification of organic food began in 1991 followed by Common Agricultural Policy reforms in 2005.
Agricultural operations produced some 13 percent of anthropogenic global greenhouse gas emissions according to a 2011 UNEP report. Livestock production occupies 70% of all land used for agriculture or 30% of the planet's land surface. Animal husbandry contributes 18% of the world's greenhouse gas emissions measured in CO2 equivalents. Methane emissions from livestock are projected to increase by 60 percent by 2030 under current consumption patterns. Agriculture accounts for 70 percent of freshwater withdrawals worldwide. Aquifers in northern China, the Upper Ganges, and western US face depletion risks. Eutrophication causes algal blooms and fish kills due to nutrient runoff from fertilizers. Pesticide use reached 2.5 million short tons annually since 1950 yet crop loss remains constant. Three million pesticide poisonings occur yearly causing 220,000 deaths according to WHO estimates. Land transformation alters Earth ecosystems with estimates ranging from 39 to 50 percent of total land affected. Twenty-four percent of global land experiences degradation affecting 1.5 billion people directly. Agricultural plastics generate large amounts of residue measuring 50 to 260 kg per hectare in topsoil areas older than ten years.
Agriculture employed 873 million people globally in 2021 representing 27% of the workforce compared to 40% in 2000. Women make up 47 percent of the agricultural workforce in sub-Saharan Africa without significant change over decades. The gender gap in land productivity between female- and male-managed farms equals 24 percent on average. Women earn 18.4 percent less than men in wage employment within agriculture receiving 82 cents for every dollar earned by men. Youth between ages 10 and 15 suffered the most non-fatal work-related injuries in recent decades. Agriculture had the leading number of work-related deaths among all industries for youth populations. Annual work-related death tolls reach at least 170,000 employees twice the rate of other jobs. Foreign farm workers constituted around one-third of salaried agricultural workforce in Spain, Italy, Greece, and Portugal in 2013. More than half of hired farmworkers in the United States were immigrants totaling roughly 450,000 workers in 2019. Between 55 and 75% of Europe's population worked in agriculture during the 16th century dropping below 10% today.
Average corn yields in the US increased from 2.5 tons per hectare in 1900 to about 9.4 t/ha in 2001. Worldwide wheat yields rose from less than 1 t/ha in 1900 to more than 2.5 t/ha in 1990. France achieved average wheat yields exceeding 8 t/ha through intensive farming techniques. Hybrid corn technology took at least 60 years before widespread adoption became standard practice. Genetic engineering allows herbicide-resistant seeds to tolerate exposure to glyphosate-based sprays. Insect-resistant crops contain genes from Bacillus thuringiensis producing toxins specific to insects. Autonomous crop robots can harvest and seed fields without human intervention. Drones gather information to automate input application in precision agriculture systems. Global automatic milking system sales have increased over recent years though adoption remains concentrated in Northern Europe. Sub-Saharan Africa represents the only region where motorized mechanization adoption has stalled over past decades. Agricultural automation reduces labor needs for automated tasks while generating new demand for equipment maintenance. Government subsidies promoting automation in contexts of abundant rural labor can lead to worker displacement and stagnant wages.
Continue Browsing
Common questions
When did the first farmers in the Levant begin planting wild grains?
The first farmers in the Levant began planting wild grains around 105,000 years ago. This early gathering phase eventually evolved into deliberate cultivation by 11,500 years ago.
Where and when were sheep and goats tamed near Mesopotamia?
Sheep and goats were tamed between 13,000 and 11,000 years ago near Mesopotamia. Cattle emerged from wild aurochs in modern Turkey and Pakistan approximately 10,500 years ago.
How much of global agricultural land exists on farms exceeding 500 hectares?
Nearly 40% of all global agricultural land exists on farms exceeding 500 hectares. Large farms larger than 500 hectares encompass more than 70% of global farmland despite representing just 1% of total farm numbers.
What percentage of anthropogenic global greenhouse gas emissions came from agriculture according to a 2011 UNEP report?
Agricultural operations produced some 13 percent of anthropogenic global greenhouse gas emissions according to a 2011 UNEP report. Livestock production occupies 70% of all land used for agriculture or 30% of the planet's land surface.
When did women make up 47 percent of the agricultural workforce in sub-Saharan Africa?
Women make up 47 percent of the agricultural workforce in sub-Saharan Africa without significant change over decades. The gender gap in land productivity between female- and male-managed farms equals 24 percent on average.