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120-587: Xaltocan is known to have been inhabited in the Postclassic period. Ceramics and other archaeological remains dating to this period have been recovered in excavations at the site. It is thought to have been a local center of power capable of exacting tribute from other city-states in the area. The founding of Xaltocan is described in the mytho-historical documents, the Historia Tolteca-Chichimeca and Anales de Cuauhtitlan . According to

240-568: A first collapse c. 100 CE, and resurged c. 250 in the Classic period. Some population centers such as Tlatilco , Monte Albán , and Cuicuilco flourished in the final stages of the Preclassic period. Meanwhile, the Olmec populations shrank and ceased to be major players in the area. Toward the end of the Preclassic period, political and commercial hegemony shifted to the population centers in

360-810: A lord of the manor with a Roman Catholic church and priest. Thanks to the exchange with the Al-Andalus where the Arab Agricultural Revolution was underway, European agriculture transformed, with improved techniques and the diffusion of crop plants, including the introduction of sugar, rice, cotton and fruit trees (such as the orange). After 1492, the Columbian exchange brought New World crops such as maize, potatoes, tomatoes, sweet potatoes , and manioc to Europe, and Old World crops such as wheat, barley, rice, and turnips , and livestock (including horses, cattle, sheep and goats) to

480-470: A combination of labor supply and labor demand trends have driven down the share of population employed in agriculture. During the 16th century in Europe, between 55 and 75% of the population was engaged in agriculture; by the 19th century, this had dropped to between 35 and 65%. In the same countries today, the figure is less than 10%. At the start of the 21st century, some one billion people, or over 1/3 of

600-568: A few centuries. The Postclassic was a period of rapid movement and population growth—especially in Central Mexico post-1200—and of experimentation in governance. For instance, in Yucatan, 'dual rulership' apparently replaced the more theocratic governments of Classic times, while oligarchic councils operated in much of central Mexico. Likewise, it appears that the wealthy pochteca (merchant class) and military orders became more powerful than

720-665: A former partner in the Aztec Triple Alliance . Although not all parts of Mesoamerica were brought under control of the Spanish Empire immediately, the defeat of the Aztecs marked the dramatic beginning of an inexorable process of conquest in Mesoamerica and incorporation that Spain completed in the mid-seventeenth century. Indigenous peoples did not disappear, although their numbers were greatly reduced in

840-664: A hazardous industry, and farmers worldwide remain at high risk of work-related injuries, lung disease, noise-induced hearing loss , skin diseases, as well as certain cancers related to chemical use and prolonged sun exposure. On industrialized farms , injuries frequently involve the use of agricultural machinery , and a common cause of fatal agricultural injuries in developed countries is tractor rollovers . Pesticides and other chemicals used in farming can be hazardous to worker health , and workers exposed to pesticides may experience illness or have children with birth defects. As an industry in which families commonly share in work and live on

960-444: A high use of inputs (water, fertilizer, pesticide and automation). It is practiced mainly in developed countries. From the twentieth century onwards, intensive agriculture increased crop productivity. It substituted synthetic fertilizers and pesticides for labor, but caused increased water pollution, and often involved farm subsidies. Soil degradation and diseases such as stem rust are major concerns globally; approximately 40% of

1080-578: A matter of vital significance because of its importance for agriculture, the economic basis of Mesoamerican society, and to predict events in the future such as lunar and solar eclipses, an important feature for the rulers, proving to the commoners their links with the heavenly world. The Middle Classic period ended in Northern Mesoamerica with the decline of Teotihuacan. This allowed other regional power centers to flourish and compete for control of trade routes and natural resources. In this way

1200-477: A milestone of Mesoamerican history, as various characteristics that define the region first appeared there. Among them are the state organization, the development of the 260-day ritual calendar and the 365-day secular calendar, the first writing system, and urban planning. The development of this culture started 1600 to 1500 BCE, though it continued to consolidate itself up to the 12th century BCE. Its principal sites were La Venta , San Lorenzo , and Tres Zapotes in

1320-632: A path from south to north. Agriculture Agriculture encompasses crop and livestock production, aquaculture , and forestry for food and non-food products. Agriculture was a key factor in the rise of sedentary human civilization , whereby farming of domesticated species created food surpluses that enabled people to live in the cities. While humans started gathering grains at least 105,000 years ago, nascent farmers only began planting them around 11,500 years ago. Sheep, goats, pigs, and cattle were domesticated around 10,000 years ago. Plants were independently cultivated in at least 11 regions of

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1440-536: A path to asserting dominance over the Valley of Mexico region not seen since Teotihuacan. By the 15th century, the Mayan 'revival' in Yucatan and southern Guatemala and the flourishing of Aztec imperialism evidently enabled a renaissance of fine arts and science. Examples include the 'Pueblan-Mexica' style in pottery, codex illumination, and goldwork, the flourishing of Nahua poetry, and the botanical institutes established by

1560-447: A positive note, the gender gap in access to mobile internet in low- and middle-income countries fell from 25 percent to 16 percent between 2017 and 2021, and the gender gap in access to bank accounts narrowed from 9 to 6 percentage points. Women are as likely as men to adopt new technologies when the necessary enabling factors are put in place and they have equal access to complementary resources. Agriculture, specifically farming, remains

1680-404: A significant decrease in genetic diversity and resources among livestock breeds, leading to a corresponding decrease in disease resistance and local adaptations previously found among traditional breeds. Grassland based livestock production relies upon plant material such as shrubland , rangeland , and pastures for feeding ruminant animals. Outside nutrient inputs may be used, however manure

1800-747: A site that also shows Olmec influences, ceded dominance of the Oaxacan plateau to Monte Albán toward the end of the middle Preclassic Era. During this same time, the Chupícuaro culture flourished in Bajío , while along the Gulf the Olmecs entered a period of decline. One of the great cultural milestones that marked the Middle Preclassic period is the development of the first writing system, by either

1920-492: A small area of forest is cleared by cutting and burning the trees. The cleared land is used for growing crops for a few years until the soil becomes too infertile, and the area is abandoned. Another patch of land is selected and the process is repeated. This type of farming is practiced mainly in areas with abundant rainfall where the forest regenerates quickly. This practice is used in Northeast India, Southeast Asia, and

2040-423: A small dominant group ruled over the majority of the population. This majority was forced to pay tribute and to participate in the building of public structures such as irrigation systems, religious edifices, and means of communication. The growth of the cities could not have happened without advances in agricultural methods and the strengthening of trade networks involving not only the peoples of Mesoamerica, but also

2160-789: A step-wise fashion. The Teotihuacan architectural style was reproduced and modified in other cities throughout Mesoamerica, the clearest examples being the Zapotec capital of Monte Alban and Kaminal Juyú in Guatemala. Centuries later, long after Teotihuacan was abandoned c. 700 CE, cities of the Postclassic era followed the style of Teotihuacan construction, especially Tula , Tenochtitlan , and Chichén Itzá . Many scientific advances were also achieved during this period. The Maya refined their calendar, script, and mathematics to their highest level of development. Writing came to be used throughout

2280-552: A year, or requiring irrigation. In all of these environments perennial crops are grown (coffee, chocolate) and systems are practiced such as agroforestry . In temperate environments, where ecosystems were predominantly grassland or prairie , highly productive annual farming is the dominant agricultural system. Important categories of food crops include cereals, legumes, forage, fruits and vegetables. Natural fibers include cotton, wool , hemp , silk and flax . Specific crops are cultivated in distinct growing regions throughout

2400-473: A yearly summit to discuss safety. Overall production varies by country as listed. The twenty largest countries by agricultural output (in nominal terms) at peak level as of 2018, according to the IMF and CIA World Factbook . Cropping systems vary among farms depending on the available resources and constraints; geography and climate of the farm; government policy; economic, social and political pressures; and

2520-584: Is a hybrid of a Chilean and a North American species, developed by breeding in Europe and North America. The indigenous people of the Southwest and the Pacific Northwest practiced forest gardening and fire-stick farming . The natives controlled fire on a regional scale to create a low-intensity fire ecology that sustained a low-density agriculture in loose rotation; a sort of "wild" permaculture . A system of companion planting called

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2640-559: Is approximate only and different timescales may be used between fields and sub-regions. Before 2600 BCE During the Archaic Era agriculture was developed in the region and permanent villages were established. Late in this era, use of pottery and loom weaving became common, and class divisions began to appear. Many of the basic technologies of Mesoamerica in terms of stone-grinding, drilling, pottery etc. were established during this period. 2000 BCE – 250 CE During

2760-408: Is based on archaeological, ethnohistorical, and modern cultural anthropology research dating to the early twentieth century. Archaeologists, ethnohistorians, historians, and cultural anthropologists continue to work to develop cultural histories of the region. 18000–8000 BCE The Paleo-Indian (less frequently, Lithic ) period or era is that which spans from the first signs of human presence in

2880-626: Is both a cause of and sensitive to environmental degradation , such as biodiversity loss , desertification , soil degradation , and climate change , all of which can cause decreases in crop yield. Genetically modified organisms are widely used, although some countries ban them . The word agriculture is a late Middle English adaptation of Latin agricultūra , from ager 'field' and cultūra ' cultivation ' or 'growing'. While agriculture usually refers to human activities, certain species of ant , termite and beetle have been cultivating crops for up to 60 million years. Agriculture

3000-444: Is defined with varying scopes, in its broadest sense using natural resources to "produce commodities which maintain life, including food, fiber, forest products, horticultural crops, and their related services". Thus defined, it includes arable farming , horticulture, animal husbandry and forestry , but horticulture and forestry are in practice often excluded. It may also be broadly decomposed into plant agriculture , which concerns

3120-438: Is returned directly to the grassland as a major nutrient source. This system is particularly important in areas where crop production is not feasible because of climate or soil, representing 30–40 million pastoralists. Mixed production systems use grassland, fodder crops and grain feed crops as feed for ruminant and monogastric (one stomach; mainly chickens and pigs) livestock. Manure is typically recycled in mixed systems as

3240-900: The Anales the Xaltocameca (people of Xaltocan) were among the Chichimec tribes that left the mythical place of origin, Aztlán , under a leader named Quauhtliztac ("White Eagle"). The Historia also identifies the Xaltocameca as belong to the Otomi ethnic group. In this document, written by Ixtlilxochitl , the first leader of the Xaltocameca is named Iztacquauhtli , which also means "White Eagle" in Nahuatl . Xaltocan's island location gave it certain advantages that other areas would not have had access to, such as making it easier to fortify, however one particularly noteworthy use of Xaltocan's location

3360-874: The Epi-Olmec culture between 300–250 BCE. The Zapotec civilization arose in the Valley of Oaxaca , the Teotihuacan civilization arose in the Valley of Mexico . The Maya civilization began to develop in the Mirador Basin (in modern-day Guatemala ) and the Epi-Olmec culture in the Isthmus of Tehuantepec (in modern-day Chiapas ), later expanding into Guatemala and the Yucatan Peninsula . In Central America , there were some Olmec influences,

3480-500: The Indus Valley civilization . In China, from the 5th century BC, there was a nationwide granary system and widespread silk farming . Water-powered grain mills were in use by the 1st century BC, followed by irrigation. By the late 2nd century, heavy ploughs had been developed with iron ploughshares and mouldboards . These spread westwards across Eurasia. Asian rice was domesticated 8,200–13,500 years ago – depending on

3600-512: The Lake Texcoco basin were concentrated. The cities of this era were characterized by their multi-ethnic composition, which entailed the cohabitation in the same population centers of people with different languages, cultural practices, and places of origin. During this period the alliances between the regional political elites were strengthened, especially for those allied with Teotihuacan. Also, social differentiation became more pronounced:

3720-618: The Maya , the Olmec , or the Zapotec . During this period, the Mesoamerican societies were highly stratified . The connections between different centers of power permitted the rise of regional elites that controlled natural resources and peasant labor. This social differentiation was based on the possession of certain technical knowledge, such as astronomy , writing, and commerce. Furthermore,

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3840-583: The Paleolithic , after 10,000 BC. Staple food crops were grains such as wheat and barley, alongside industrial crops such as flax and papyrus . In India , wheat, barley and jujube were domesticated by 9,000 BC, soon followed by sheep and goats. Cattle, sheep and goats were domesticated in Mehrgarh culture by 8,000–6,000 BC. Cotton was cultivated by the 5th–4th millennium BC. Archeological evidence indicates an animal-drawn plough from 2,500 BC in

3960-551: The Preclassic Era , or Formative Period , large-scale ceremonial architecture, writing, cities, and states developed. Many of the distinctive elements of Mesoamerican civilization can be traced to this period, including the dominance of corn, the building of pyramids, human sacrifice , jaguar-worship , the complex calendar, and many of the gods. The Olmec civilization developed and flourished at such sites as La Venta and San Lorenzo Tenochtitlán , eventually succeeded by

4080-569: The Pyramid of the Moon in Teotihuacan . Around the start of the common era, Cuicuilco had disappeared, and the hegemony over the Mexican basin had passed to Teotihuacan. The next two centuries marked the period in which the so-called city of the gods consolidated its power, becoming the premier Mesoamerican city of the first millennium, and the principal political, economic, and cultural center for

4200-514: The Tigris and Euphrates rivers and a canal system for irrigation. Ploughs appear in pictographs around 3,000 BC; seed-ploughs around 2,300 BC. Farmers grew wheat, barley, vegetables such as lentils and onions, and fruits including dates, grapes, and figs. Ancient Egyptian agriculture relied on the Nile River and its seasonal flooding. Farming started in the predynastic period at the end of

4320-524: The Valley of Mexico . Around Lake Texcoco there existed a number of villages that grew into true cities: Tlatilco and Cuicuilco are examples. The former was found on the northern bank of the lake, while the latter was on the slopes of the mountainous region of Ajusco . Tlatilco maintained strong relationships with the cultures of the West, so much so that Cuicuilco controlled commerce in the Maya area, Oaxaca, and

4440-630: The molecular clock estimate that is used – on the Pearl River in southern China with a single genetic origin from the wild rice Oryza rufipogon . In Greece and Rome , the major cereals were wheat, emmer, and barley, alongside vegetables including peas, beans, and olives. Sheep and goats were kept mainly for dairy products. In the Americas, crops domesticated in Mesoamerica (apart from teosinte) include squash, beans, and cacao . Cocoa

4560-548: The organic movement . Unsustainable farming practices in North America led to the Dust Bowl of the 1930s. Pastoralism involves managing domesticated animals. In nomadic pastoralism , herds of livestock are moved from place to place in search of pasture, fodder, and water. This type of farming is practiced in arid and semi-arid regions of Sahara , Central Asia and some parts of India. In shifting cultivation ,

4680-711: The "Heart of the Mountain" The exact causes of the Olmec decline are unknown. In the Pacific lowlands of the Maya Area, Takalik Abaj c. 800 BCE, Izapa c. 700 BCE, and Chocola c. 600 BCE, along with Kaminaljuyú c. 800 BCE, in the central Highlands of Guatemala, advanced in the direction of what would be the Classic Maya culture. Apart from the West, where the tradition of the Tumbas de tiro had taken root, in all

4800-540: The Amazon Basin. Subsistence farming is practiced to satisfy family or local needs alone, with little left over for transport elsewhere. It is intensively practiced in Monsoon Asia and South-East Asia. An estimated 2.5 billion subsistence farmers worked in 2018, cultivating about 60% of the earth's arable land . Intensive farming is cultivation to maximize productivity, with a low fallow ratio and

4920-560: The Americas. Irrigation , crop rotation , and fertilizers advanced from the 17th century with the British Agricultural Revolution , allowing global population to rise significantly. Since 1900, agriculture in developed nations, and to a lesser extent in the developing world, has seen large rises in productivity as mechanization replaces human labor, and assisted by synthetic fertilizers , pesticides, and selective breeding . The Haber-Bosch method allowed

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5040-629: The Aztec elite. Spain was the first European power to contact Mesoamerica. Its conquistadors , aided by numerous native allies, conquered the Aztecs. 1521–1821 CE The Colonial Period was initiated with the Spanish conquest (1519–1521), which ended the hegemony of the Aztec Empire . It was accomplished with Spaniards' strategic alliances with enemies of the empire, most especially Tlaxcala , but also Huexotzinco, Xochimilco, and even Texcoco ,

5160-407: The Aztec empire (1519–1521) marks the end of indigenous rule and the incorporation of indigenous peoples as subjects of the Spanish Empire for the 300 year colonial period . The postcolonial period began with Mexican independence in 1821 and continues to the present day. European conquest did not end the existence of Mesoamerica's indigenous peoples, but did subject them to new political regimes. In

5280-449: The Gulf coast. The rivalry between the two cities ended with the decline of Tlatilco. Meanwhile, at Monte Albán in the Valley of Oaxaca , the Zapotec had begun developing culturally independent of the Olmec, adopting aspects of that culture but making their own contributions as well. On the southern coast of Guatemala, Kaminaljuyú advanced in the direction of what would be the Classic Maya culture, even though its links to Central Mexico and

5400-544: The Gulf plains. Whatever their origin, these bearers of Olmec culture arrived at the leeward shore some eight thousand years BCE, entering like a wedge among the fringe of proto-Maya peoples who lived along the coast, a migration that would explain the separation of the Huastecs of the north of Veracruz from the rest of the Maya peoples based in the Yucatán Peninsula and Guatemala . The Olmec culture represents

5520-401: The Gulf would initially provide their cultural models. Apart from the West, where the tradition of the Tumbas de tiro had taken root, in all the regions of Mesoamerica the cities grew in wealth, with monumental constructions carried out according to urban plans that were surprisingly complex. The circular pyramid of Cuicuilco dates from this time, as well as the central plaza of Monte Albán, and

5640-461: The Highlands were a geographic and temporal bridge between Early Preclassic villages of the Pacific coast and later Petén lowlands cities. In Monte Alto near La Democracia, Escuintla , in the Pacific lowlands of Guatemala , some giant stone heads and potbelly sculptures ( barrigones ) have been found, dated at c.  1800 BCE , of the so-named Monte Alto Culture . Around 1500 BCE,

5760-490: The Maya area, Oaxaca, and the Gulf coast. The rivalry between the two cities ended with the decline of Tlatilco. Meanwhile, at Monte Albán in Oaxaca, the Zapotec had begun developing culturally independent of the Olmec, adopting aspects of that culture and making their own contributions as well. In Peten, the great Classic Maya cities of Tikal , Uaxactun , and Seibal , began their growth at c. 300 BCE. Cuicuilco's hegemony over

5880-536: The Mayan area, although it was still regarded as a noble activity and practiced only by noble scribes, painters, and priests. Using a similar system of writing, other cultures developed their own scripts, the most notable examples being those of the Ñuiñe culture and the Zapotecs of Oaxaca, although the Mayan system was the only fully developed writing system in Precolumbian America. Astronomy remained

6000-412: The Middle Preclassic period saw the beginnings of the process of urbanization that would come to define the societies of the Classic period. In the Maya area, cities such as Nakbe c. 1000 BCE, El Mirador c. 650 BCE, Cival c. 350 BCE, and San Bartolo show the same monumental architecture of the Classic period. In fact, El Mirador is the largest Maya city. It has been argued that the Maya experienced

6120-421: The Olmecs is still widely debated. Based on linguistic evidence, archaeologists and anthropologists generally believe that they were either speakers of an Oto-Manguean language, or (more likely) the ancestors of the present-day Zoque people who live in the north of Chiapas and Oaxaca . According to this second hypothesis, Zoque tribes emigrated toward the south after the fall of the major population centers of

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6240-603: The Otomies". During the next 100 years the site was resettled by Nahua peoples. After the Aztec Triple Alliance defeated the Tepanecs of Azcapotzalco, Xaltocan became an Aztec subject city and paid tribute to Tenochtitlan, mainly in the form of woven blankets. The Aztec resettlement of Xaltocan also caused a breakdown in several of the key institutions that were required to keep the farming in Xaltocan sustainable, this caused

6360-545: The Paleo-Indian (first human habitation until 3500 BCE); the Archaic (before 2600 BCE), the Preclassic or Formative (2500 BCE – 250 CE), the Classic (250–900 CE), and the Postclassic (900–1521  CE ); as well as the post European contact Colonial Period (1521–1821), and Postcolonial, or the period after independence from Spain (1821–present). The periodisation of Mesoamerica by researchers

6480-586: The Paleolithic Levant, 23,000 years ago, cereals cultivation of emmer , barley , and oats has been observed near the sea of Galilee. Rice was domesticated in China between 11,500 and 6,200 BC with the earliest known cultivation from 5,700 BC, followed by mung , soy and azuki beans. Sheep were domesticated in Mesopotamia between 13,000 and 11,000 years ago. Cattle were domesticated from

6600-569: The Postclassic era. In addition, southern peoples established themselves in the center of Mexico, including the Olmec-Xicalanca, who came from the Yucatán Peninsula and founded Cacaxtla and Xochicalco . In the Maya region, Tikal , an ally of Teotihuacan, experienced a decline, the so-called Tikal Hiatus, after being defeated by Dos Pilas , and Caracol , ally of Calakmul , lasted about another 100 years. During this hiatus,

6720-486: The Three Sisters was developed in North America. The three crops were winter squash , maize, and climbing beans. Indigenous Australians , long supposed to have been nomadic hunter-gatherers , practiced systematic burning, possibly to enhance natural productivity in fire-stick farming. Scholars have pointed out that hunter-gatherers need a productive environment to support gathering without cultivation. Because

6840-793: The United Nations (FAO) posits that the roles and responsibilities of women in agriculture may be changing – for example, from subsistence farming to wage employment, and from contributing household members to primary producers in the context of male-out-migration. In general, women account for a greater share of agricultural employment at lower levels of economic development, as inadequate education, limited access to basic infrastructure and markets, high unpaid work burden and poor rural employment opportunities outside agriculture severely limit women's opportunities for off-farm work. Women who work in agricultural production tend to do so under highly unfavorable conditions. They tend to be concentrated in

6960-524: The United States is roughly 1.7 times more productive than it was in 1948. Agriculture employed 873 million people in 2021, or 27% of the global workforce, compared with 1 027 million (or 40%) in 2000. The share of agriculture in global GDP was stable at around 4% since 2000–2023. Despite increases in agricultural production and productivity, between 702 and 828 million people were affected by hunger in 2021. Food insecurity and malnutrition can be

7080-574: The Valley of Oaxaca until the late Classic, leaving limited records in their script , which is as yet mostly undeciphered. Highly sophisticated arts such as stuccowork, architecture, sculptural reliefs, mural painting, pottery, and lapidary developed and spread during the Classic era. In the Maya region, under considerable military influence by Teotihuacan after the "arrival" of Siyaj K'ak' in 378 CE, numerous city states such as Tikal , Uaxactun , Calakmul , Copán , Quirigua , Palenque , Cobá , and Caracol reached their zeniths. Each of these polities

7200-544: The annual work-related death toll among agricultural employees is at least 170,000, twice the average rate of other jobs. In addition, incidences of death, injury and illness related to agricultural activities often go unreported. The organization has developed the Safety and Health in Agriculture Convention, 2001 , which covers the range of risks in the agriculture occupation, the prevention of these risks and

7320-732: The archaeological sites of Los Naranjos and Yarumela in Honduras stand out, built by ancestors of the Lencas , which reflect an architectural influence of this culture on Central American soil. Other sites with possible Olmec influence have been reported, such as Puerto Escondido, in the Sula Valley, near La Lima, and Hato Viejo in the department of Olancho , where a jadeite statuette has been found that shares many characteristics with those found in Mexico. 250–900 CE The Classic Period

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7440-553: The available work force, were employed in agriculture. This constitutes approximately 70% of the global employment of children, and in many countries constitutes the largest percentage of women of any industry. The service sector overtook the agricultural sector as the largest global employer in 2007. In many developed countries, immigrants help fill labor shortages in high-value agriculture activities that are difficult to mechanize. Foreign farm workers from mostly Eastern Europe, North Africa and South Asia constituted around one-third of

7560-453: The ballgame, and others that they were images of the Olmec governing elite. The Olmec are also known for their small carvings made of jade and other greenstones . So many of the Olmec figurines and sculptures contain representations of the were-jaguar , that, according to José María Covarrubias , they could be forerunners of the worship of the rain god, or maybe a predecessor of the future Tezcatlipoca in his manifestation as Tepeyolohtli,

7680-490: The best-known expressions of Olmec culture are giant stone heads, sculptured monoliths up to three meters in height and several tons in weight. These feats of Olmec stonecutting are especially impressive when one considers that Mesoamericans lacked iron tools and that the heads are at sites dozens of kilometers from the quarries where their basalt was mined. The function of these monuments is unknown. Some authors propose that they were commemorative monuments for notable players of

7800-423: The central west coast and eastern central, early farmers cultivated yams, native millet, and bush onions, possibly in permanent settlements. In the Middle Ages , compared to the Roman period , agriculture in Western Europe became more focused on self-sufficiency . The agricultural population under feudalism was typically organized into manors consisting of several hundred or more acres of land presided over by

7920-473: The chart below of prehispanic cultures, the dates mentioned are approximations, and that the transition from one period to another did not occur at the same time nor under the same circumstances in all societies. The Preclassic period ran from 2500 BCE to 200 CE. Its beginnings are marked by the development of the first ceramic traditions in the West, specifically at sites such as Matanchén , Nayarit , and Puerto Marqués, in Guerrero . Some authors hold that

8040-431: The chinampas to eventually be abandoned. In 1521, during the Spanish conquest of the Aztec Empire , the army of Hernán Cortés razed Xaltocan and burned it to the ground. 19°25′01″N 98°12′00″W  /  19.417°N 98.2°W  / 19.417; -98.2 Mesoamerican chronology#Postclassic Era Mesoamerican chronology divides the history of prehispanic Mesoamerica into several periods:

8160-418: The cities of Dos Pilas, Piedras Negras , Caracol , Calakmul, Palenque , Copán , and Yaxchilán were consolidated. These and other city-states of the region found themselves involved in bloody wars with changing alliances, until Tikal defeated, in order, Dos Pilas, Caracol, with the help of Yaxha and El Naranjo , Waka , Calakmul's last ally, and finally Calakmul itself, an event that took place in 732 with

8280-430: The core region. However, throughout Mesoamerica numerous sites show evidence of Olmec occupation, especially in the Balsas river basin, where Teopantecuanitlan is located. This site is quite enigmatic, since it dates from several centuries earlier than the main populations of the Gulf, a fact which has continued to cause controversy and given rise to the hypothesis that the Olmec culture originated in that region. Among

8400-468: The cultivation of useful plants, and animal agriculture , the production of agricultural animals. The development of agriculture enabled the human population to grow many times larger than could be sustained by hunting and gathering . Agriculture began independently in different parts of the globe, and included a diverse range of taxa , in at least 11 separate centers of origin . Wild grains were collected and eaten from at least 105,000 years ago. In

8520-475: The cultures of the West entered a period of decline, accompanied by an assimilation into the other peoples with whom they had maintained connections. As a result, the Tlatilco culture emerged in the Valley of Mexico , and the Olmec culture in the Gulf. Tlatilco was one of the principal Mesoamerican population centers of this period. Its people were adept at harnessing the natural resources of Lake Texcoco and at cultivating maize. Some authors posit that Tlatilco

8640-578: The disappearance of Monte Albán around 850. Normally, the Classic period in Mesoamerica is characterized as the stage in which the arts, science, urbanism, architecture, and social organization reached their peak. This period was also dominated by the influence of Teotihuacan throughout the region, and the competition between the different Mesoamerican states led to continuous warfare. This period of Mesoamerican history can be divided into three phases. Early, from 250 to 550 CE; Middle, from 550 to 700; and Late, from 700 to 900. The early Classic period began with

8760-492: The distant cultures of Oasisamerica . The arts of Mesoamerica reached their high-point in this era. Especially notable are the Maya stelae (carved pillars), exquisite monuments commemorating the stories of the Royal families, the rich corpus of polychrome ceramics, mural painting, and music. In Teotihuacan, architecture made great advances: the Classic style was defined by the construction of pyramidal bases that sloped upward in

8880-668: The domestication of squash (Cucurbita) and other plants. Coca was domesticated in the Andes, as were the peanut, tomato, tobacco, and pineapple . Cotton was domesticated in Peru by 3,600 BC. Animals including llamas , alpacas , and guinea pigs were domesticated there. In North America , the indigenous people of the East domesticated crops such as sunflower , tobacco, squash and Chenopodium . Wild foods including wild rice and maple sugar were harvested. The domesticated strawberry

9000-598: The early development of pottery in this area is related to the ties between South America and the coastal peoples of Mexico. The advent of ceramics is taken as an indicator of a sedentary society, and it signals the divergence of Mesoamerica from the hunter-gatherer societies in the desert to the north. The Preclassic Era (also known as the Formative Period) is divided into three phases: the Early (2500–1200 BCE), Middle (1500–600 BCE), and Late (600 BCE – 200 CE). During

9120-420: The expansion of Teotihuacan, which led to its control over the principal trade routes of northern Mesoamerica. During this time, the process of urbanization that started in the last centuries of the early Preclassic period was consolidated. The principal centers of this phase were Monte Albán , Kaminaljuyu , Ceibal , Tikal , and Calakmul , and then Teotihuacan, in which 80 per cent of the 200,000 inhabitants of

9240-432: The farm itself, entire families can be at risk for injuries, illness, and death. Ages 0–6 may be an especially vulnerable population in agriculture; common causes of fatal injuries among young farm workers include drowning, machinery and motor accidents, including with all-terrain vehicles. The International Labor Organization considers agriculture "one of the most hazardous of all economic sectors". It estimates that

9360-459: The first phase, the manufacture of ceramics was widespread across the entire region, the cultivation of maize and vegetables became well-established, and society started to become socially stratified in a process that concluded with the appearance of the first hierarchical societies along the coast of the Gulf of Mexico. In the early Preclassic period, the Capacha culture acted as a driving force in

9480-430: The forests of New Guinea have few food plants, early humans may have used "selective burning" to increase the productivity of the wild karuka fruit trees to support the hunter-gatherer way of life. The Gunditjmara and other groups developed eel farming and fish trapping systems from some 5,000 years ago. There is evidence of 'intensification' across the whole continent over that period. In two regions of Australia,

9600-664: The great nations and cities of the Classic Era collapsed, although some continued, such as in Oaxaca , Cholula , and the Maya of Yucatan , such as at Chichen Itza and Uxmal . This is sometimes thought to have been a period of increased chaos and warfare. The Postclassic is often viewed as a period of cultural decline. However, it was a time of technological advancement in architecture, engineering, and weaponry. Metallurgy (introduced c. 800) came into use for jewelry and some tools, with new alloys and techniques being developed in

9720-422: The greater use of pesticides and fertilizers. Multiple cropping , in which several crops are grown sequentially in one year, and intercropping , when several crops are grown at the same time, are other kinds of annual cropping systems known as polycultures . In subtropical and arid environments, the timing and extent of agriculture may be limited by rainfall, either not allowing multiple annual crops in

9840-441: The input of nutrients (fertilizer or manure ) and some manual pest control . Annual cultivation is the next phase of intensity in which there is no fallow period. This requires even greater nutrient and pest control inputs. Further industrialization led to the use of monocultures , when one cultivar is planted on a large acreage. Because of the low biodiversity , nutrient use is uniform and pests tend to build up, necessitating

9960-470: The late Classic era commenced. Political fragmentation during this era meant no city had complete hegemony. Various population movements occurred, caused by the incursion of groups from Aridoamerica and other northern regions, who pushed the older populations of Mesoamerica south. Among these new groups were the Nahua , who would later found the cities of Tula and Tenochtitlan, the two most important capitals of

10080-476: The lower yield associated with organic farming and its impact on global food security . Recent mainstream technological developments include genetically modified food . By 2015, the agricultural output of China was the largest in the world, followed by the European Union, India and the United States. Economists measure the total factor productivity of agriculture, according to which agriculture in

10200-419: The next seven centuries. For many years, the Olmec culture was thought to be the 'mother culture' of Mesoamerica, because of the great influence that it exercised throughout the region. However, more recent perspectives consider this culture to be more of a process to which all the contemporary peoples contributed, and which eventually crystallized on the coasts of Veracruz and Tabasco . The ethnic identity of

10320-437: The philosophy and culture of the farmer. Shifting cultivation (or slash and burn ) is a system in which forests are burnt, releasing nutrients to support cultivation of annual and then perennial crops for a period of several years. Then the plot is left fallow to regrow forest, and the farmer moves to a new plot, returning after many more years (10–20). This fallow period is shortened if population density grows, requiring

10440-414: The poorest countries, where alternative livelihoods are not available, and they maintain the intensity of their work in conditions of climate-induced weather shocks and in situations of conflict. Women are less likely to participate as entrepreneurs and independent farmers and are engaged in the production of less lucrative crops. The gender gap in land productivity between female- and male managed farms of

10560-421: The population centers in the Valley of Mexico . Around Lake Texcoco there existed a number of villages that grew into true cities: Tlatilco and Cuicuilco are examples. The former was found on the northern bank of the lake, while the latter was on the slopes of the mountainous region of Ajusco . Tlatilco maintained strong relationships with the cultures of the West, so much so that Cuicuilco controlled commerce in

10680-503: The process of civilizing Mesoamerica, and its pottery spread widely across the region. By 2500 BCE, small settlements were developing in Guatemala's Pacific Lowlands, places such as Tilapa, La Blanca , Ocós, El Mesak, Ujuxte , and others, where the oldest ceramic pottery from Guatemala have been found. From 2000 BCE a heavy concentration of pottery in the Pacific Coast Line has been documented. Recent excavations suggest that

10800-440: The production of fish for human consumption in confined operations, is one of the fastest growing sectors of food production, growing at an average of 9% a year between 1975 and 2007. During the second half of the 20th century, producers using selective breeding focused on creating livestock breeds and crossbreeds that increased production, while mostly disregarding the need to preserve genetic diversity . This trend has led to

10920-486: The region, which many believe to have happened due to the Bering Land Bridge, to the establishment of agriculture and other practices (e.g. pottery , permanent settlements) and subsistence techniques characteristic of proto- civilizations . In Mesoamerica, the termination of this phase and its transition into the succeeding Archaic period may generally be reckoned at between 10,000 and 8000 BCE. This dating

11040-608: The regions of Mesoamerica the cities grew in wealth, with monumental constructions carried out according to urban plans that were surprisingly complex. La Danta in El Mirador , the San Bartolo murals, and the circular pyramid of Cuicuilco date from this time, as do the central plaza of Monte Albán and the Pyramid of the Moon in Teotihuacan . Toward the end of the Preclassic period, political and commercial hegemony shifted to

11160-477: The result of conflict, climate extremes and variability and economic swings. It can also be caused by a country's structural characteristics such as income status and natural resource endowments as well as its political economy. Pesticide use in agriculture went up 62% between 2000 and 2021, with the Americas accounting for half the use in 2021. The International Fund for Agricultural Development posits that an increase in smallholder agriculture may be part of

11280-874: The role that individuals and organizations engaged in agriculture should play. In the United States, agriculture has been identified by the National Institute for Occupational Safety and Health as a priority industry sector in the National Occupational Research Agenda to identify and provide intervention strategies for occupational health and safety issues. In the European Union, the European Agency for Safety and Health at Work has issued guidelines on implementing health and safety directives in agriculture, livestock farming, horticulture, and forestry. The Agricultural Safety and Health Council of America (ASHCA) also holds

11400-529: The sacrifice of Yuknom Cheen's son in Tikal. That led to construction of monumental architecture in Tikal, from 740 to 810; the last date documented there was 899. The ruin of the Classic Maya civilization in the northern lowlands, begun at La Passion states such as Dos Pilas, Aguateca , Ceibal and Cancuén , c. 760, followed by the Usumacinta system cities of Yaxchilan, Piedras Negras, and Palenque, following

11520-478: The salaried agricultural workforce in Spain, Italy, Greece and Portugal in 2013. In the United States of America, more than half of all hired farmworkers (roughly 450,000 workers) were immigrants in 2019, although the number of new immigrants arriving in the country to work in agriculture has fallen by 75 percent in recent years and rising wages indicate this has led to a major labor shortage on U.S. farms. Around

11640-439: The same size is 24 percent. On average, women earn 18.4 percent less than men in wage employment in agriculture; this means that women receive 82 cents for every dollar earned by men. Progress has been slow in closing gaps in women's access to irrigation and in ownership of livestock, too. Women in agriculture still have significantly less access than men to inputs, including improved seeds, fertilizers and mechanized equipment. On

11760-520: The same time. The processes that gave rise to each of the cultural systems of Mesoamerica were very complex and not determined solely by the internal dynamics of each society. External as well as endogenous factors influenced their development. Among these factors, for example, were the relations between human groups and between humans and the environment, human migrations, and natural disasters. Historians and archaeologists divide pre-Hispanic Mesoamerican history into three periods. The Spanish conquest of

11880-471: The sixteenth century by new infectious diseases brought by the Spanish invaders; they suffered high mortality from slave labor, and during epidemics. The fall of Tenochtitlan marked the beginning of the three-hundred-year colonial period and the imposition of Spanish rule. Mesoamerican civilisation was a complex network of different cultures. As seen in the time-line below, these did not necessarily occur at

12000-488: The solution to concerns about food prices and overall food security , given the favorable experience of Vietnam. Agriculture provides about one-quarter of all global employment, more than half in sub-Saharan Africa and almost 60 percent in low-income countries. As countries develop, other jobs have historically pulled workers away from agriculture, and labor-saving innovations increase agricultural productivity by reducing labor requirements per unit of output. Over time,

12120-400: The synthesis of ammonium nitrate fertilizer on an industrial scale, greatly increasing crop yields and sustaining a further increase in global population. Modern agriculture has raised or encountered ecological, political, and economic issues including water pollution , biofuels , genetically modified organisms , tariffs and farm subsidies , leading to alternative approaches such as

12240-679: The transition from hunter-gatherer to agricultural societies indicate an initial period of intensification and increasing sedentism ; examples are the Natufian culture in the Levant , and the Early Chinese Neolithic in China. Then, wild stands that had previously been harvested started to be planted, and gradually came to be domesticated. In Eurasia, the Sumerians started to live in villages from about 8,000 BC, relying on

12360-437: The valley declined in the period 100 BCE to 1 CE. As Cuicuilco declined, Teotihuacan began to grow in importance. The next two centuries marked the period in which the so-called City of the gods consolidated its power, becoming the premier Mesoamerican city of the first millennium, and the principal political, economic, and cultural center in Central Mexico for the next seven centuries. The Classic period of Mesoamerica includes

12480-671: The wild aurochs in the areas of modern Turkey and Pakistan some 10,500 years ago. Pig production emerged in Eurasia, including Europe, East Asia and Southwest Asia, where wild boar were first domesticated about 10,500 years ago. In the Andes of South America, the potato was domesticated between 10,000 and 7,000 years ago, along with beans, coca , llamas , alpacas , and guinea pigs . Sugarcane and some root vegetables were domesticated in New Guinea around 9,000 years ago. Sorghum

12600-744: The world consist of fewer than 2 hectares (4.9 acres), and take up only around 12% of all agricultural land. Farms and farming greatly influence rural economics and greatly shape rural society , affecting both the direct agricultural workforce and broader businesses that support the farms and farming populations. The major agricultural products can be broadly grouped into foods , fibers , fuels , and raw materials (such as rubber ). Food classes include cereals ( grains ), vegetables , fruits , cooking oils , meat , milk , eggs , and fungi . Global agricultural production amounts to approximately 11 billion tonnes of food, 32 million tonnes of natural fibers and 4 billion m of wood. However, around 14% of

12720-781: The world's agricultural land is seriously degraded. In recent years there has been a backlash against the environmental effects of conventional agriculture, resulting in the organic , regenerative , and sustainable agriculture movements. One of the major forces behind this movement has been the European Union , which first certified organic food in 1991 and began reform of its Common Agricultural Policy (CAP) in 2005 to phase out commodity-linked farm subsidies, also known as decoupling . The growth of organic farming has renewed research in alternative technologies such as integrated pest management , selective breeding, and controlled-environment agriculture . There are concerns about

12840-664: The world's food is lost from production before reaching the retail level. Modern agronomy , plant breeding , agrochemicals such as pesticides and fertilizers , and technological developments have sharply increased crop yields , but also contributed to ecological and environmental damage . Selective breeding and modern practices in animal husbandry have similarly increased the output of meat, but have raised concerns about animal welfare and environmental damage. Environmental issues include contributions to climate change , depletion of aquifers , deforestation , antibiotic resistance , and other agricultural pollution . Agriculture

12960-485: The world, women make up a large share of the population employed in agriculture. This share is growing in all developing regions except East and Southeast Asia where women already make up about 50 percent of the agricultural workforce. Women make up 47 percent of the agricultural workforce in sub-Saharan Africa, a rate that has not changed significantly in the past few decades. However, the Food and Agriculture Organization of

13080-495: The world. In the 20th century, industrial agriculture based on large-scale monocultures came to dominate agricultural output. As of 2021 , small farms produce about one-third of the world's food, but large farms are prevalent. The largest 1% of farms in the world are greater than 50 hectares (120 acres) and operate more than 70% of the world's farmland. Nearly 40% of agricultural land is found on farms larger than 1,000 hectares (2,500 acres). However, five of every six farms in

13200-621: The world. Production is listed in millions of metric tons, based on FAO estimates. Animal husbandry is the breeding and raising of animals for meat, milk, eggs , or wool , and for work and transport. Working animals , including horses, mules , oxen , water buffalo , camels, llamas, alpacas, donkeys, and dogs, have for centuries been used to help cultivate fields, harvest crops, wrangle other animals, and transport farm products to buyers. Livestock production systems can be defined based on feed source, as grassland-based, mixed, and landless. As of 2010 , 30% of Earth's ice- and water-free area

13320-418: The years from 250 to 900 CE. The end point of this period varied from region to region: for example, in the center of Mexico it is related to the fall of the regional centers of the late Classic (sometimes called Epiclassic) period, toward the year 900; in the Gulf, with the decline of El Tajín , in the year 800; in the Maya area, with the abandonment of the highland cities in the 9th century; and in Oaxaca, with

13440-401: Was apparently the case in Classic times. This afforded some Mesoamericans a degree of social mobility. The Toltec for a time dominated central Mexico in the 9th–10th century, then collapsed. The northern Maya were for a time united under Mayapan . Oaxaca was briefly united by Mixtec rulers in the 11th–12th centuries. The Aztec Empire arose in the early 15th century and appeared to be on

13560-587: Was domesticated by the Mayo Chinchipe of the upper Amazon around 3,000 BC. The turkey was probably domesticated in Mexico or the American Southwest. The Aztecs developed irrigation systems, formed terraced hillsides, fertilized their soil, and developed chinampas or artificial islands. The Mayas used extensive canal and raised field systems to farm swampland from 400 BC. In South America agriculture may have begun about 9000 BC with

13680-560: Was domesticated in the Sahel region of Africa by 7,000 years ago. Cotton was domesticated in Peru by 5,600 years ago, and was independently domesticated in Eurasia. In Mesoamerica , wild teosinte was bred into maize (corn) from 10,000 to 6,000 years ago. The horse was domesticated in the Eurasian Steppes around 3500 BC. Scholars have offered multiple hypotheses to explain the historical origins of agriculture. Studies of

13800-578: Was dominated by numerous independent city-states in the Maya region and also featured the beginnings of political unity in central Mexico and the Yucatán. Regional differences between cultures grew more manifest. The city-state of Teotihuacan dominated the Valley of Mexico until the early 8th century, but little is known of the political structure of the region because the Teotihuacanos left no written records. The city-state of Monte Albán dominated

13920-420: Was founded and inhabited by the ancestors of today's Otomi people . The Olmecs, on the other hand, had entered into an expansionist phase that led them to construct their first works of monumental architecture at San Lorenzo and La Venta . The Olmecs exchanged goods within their own core area and with sites as far away as Guerrero and Morelos and present day Guatemala and Costa Rica . San José Mogote ,

14040-542: Was generally independent, although they often formed alliances and sometimes became vassal states of each other. The main conflict during this period was between Tikal and Calakmul, which fought a series of wars over the course of more than half a millennium. Each of these states declined during the Terminal Classic and were eventually abandoned. 900–1521 CE In the Postclassic Period many of

14160-546: Was initially the strongest but around 1395 the ruler of Cuauhtitlan, Xaltemoctzin, allied himself with Tezozomoc of Azcapotzalco and his subjects the Mexica of Tenochtitlan and finally managed to conquer Xaltocan. The Otomi inhabitants fled north to the Otomian city-state of Metztitlan and to Tlaxcala , while others were allowed to resettle on the lands of Texcoco in the place that was henceforth called Otumba - "Place of

14280-403: Was to use the lake to create chinampas which played a vital role in the agriculture of Xaltocan. The chinampas would have been used to grow a variety of foods including corn, beans, squash and much more. It's been found that there was a calculable agricultural surplus in Xaltocan. In the 13th century Xaltocan were involved in a prolonged war with the Nahua city-state of Cuauhtitlan . Xaltocan

14400-584: Was used for producing livestock, with the sector employing approximately 1.3 billion people. Between the 1960s and the 2000s, there was a significant increase in livestock production, both by numbers and by carcass weight, especially among beef, pigs and chickens, the latter of which had production increased by almost a factor of 10. Non-meat animals, such as milk cows and egg-producing chickens, also showed significant production increases. Global cattle, sheep and goat populations are expected to continue to increase sharply through 2050. Aquaculture or fish farming,

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