In the history of the Americas , the pre-Columbian era , also known as the pre-contact era , or as the pre-Cabraline era specifically in Brazil , spans from the initial peopling of the Americas in the Upper Paleolithic to the onset of European colonization , which began with Christopher Columbus 's voyage in 1492. This era encompasses the history of Indigenous cultures prior to significant European influence, which in some cases did not occur until decades or even centuries after Columbus's arrival.
141-796: Chichén Itzá (often spelled Chichen Itza in English and traditional Yucatec Maya) Yucatec Maya pronunciation was a large pre-Columbian city built by the Maya people of the Terminal Classic period. The archeological site is located in Tinúm Municipality , Yucatán State , Mexico . Chichén Itzá was a major focal point in the Northern Maya Lowlands from the Late Classic (c. AD 600–900) through
282-508: A postalveolar ejective affricate consonant. Traditional Yucatec Maya spelling in Latin letters, used from the 16th through mid 20th century, spelled it as "Chichen Itza" (as accents on the last syllable are usual for the language, they are not indicated as they are in Spanish). The word "Itzaʼ" has a high tone on the "a" followed by a glottal stop (indicated by the apostrophe). Evidence in
423-471: A battle scene. Pre-Columbian During the pre-Columbian era, many civilizations developed permanent settlements, cities, agricultural practices, civic and monumental architecture, major earthworks , and complex societal hierarchies. Some of these civilizations had declined by the time of the establishment of the first permanent European colonies, around the late 16th to early 17th centuries, and are known primarily through archaeological research of
564-607: A different social structure. Until the accurate dating of Watson Brake and similar sites, the oldest mound complex was thought to be Poverty Point , also located in the Lower Mississippi Valley . Built about 1500 BCE, it is the centerpiece of a culture extending over 100 sites on both sides of the Mississippi . The Poverty Point site has earthworks in the form of six concentric half-circles, divided by radial aisles, together with some mounds. The entire complex
705-540: A large Indio-Spanish army and conquered the peninsula. The Spanish crown later issued a land grant that included Chichen Itza and by 1588 it was a working cattle ranch. Chichén Itzá entered the popular imagination in 1843 with the book Incidents of Travel in Yucatan by John Lloyd Stephens (with illustrations by Frederick Catherwood ). The book recounted Stephens' visit to Yucatán and his tour of Maya cities, including Chichén Itzá. The book prompted other explorations of
846-519: A pioneer of the study of karst in Slovenia and a fellow of the Royal Society , London, introduced the word karst to European scholars in 1689 to describe the phenomenon of underground flows of rivers in his account of Lake Cerknica . Jovan Cvijić greatly advanced the knowledge of karst regions to the point where he became known as the "father of karst geomorphology". Primarily discussing
987-762: A population of over 20,000. Other chiefdoms were constructed throughout the Southeast, and its trade networks reached to the Great Lakes and the Gulf of Mexico. At its peak, between the 12th and 13th centuries, Cahokia was the most populous city in North America. (Larger cities did exist in Mesoamerica and the Andes.) Monks Mound , the major ceremonial center of Cahokia, remains the largest earthen construction of
1128-432: A powerful regional capital controlling north and central Yucatán. It established Isla Cerritos as a trading port. The layout of Chichén Itzá site core developed during its earlier phase of occupation, between 750 and 900 AD. Its final layout was developed after 900 AD, and the 10th century saw the rise of the city as a regional capital controlling the area from central Yucatán to the north coast, with its power extending down
1269-582: A proper noun, the Slovene form Grast was first attested in 1177. Ultimately, the word is of Mediterranean origin. It has also been suggested that the word may derive from the Proto-Indo-European root karra- 'rock'. The name may also be connected to the oronym Kar(u)sádios oros cited by Ptolemy , and perhaps also to Latin Carusardius . Johann Weikhard von Valvasor ,
1410-569: A regional center by 1100, before the rise of Mayapan. Ongoing research at the site of Mayapan may help resolve this chronological conundrum. After Chichén Itzá elite activities ceased, the city may not have been abandoned. When the Spanish arrived, they found a thriving local population, although it is not clear from Spanish sources if these Maya were living in Chichen Itza proper, or a nearby settlement. The relatively high population density in
1551-465: A series of nine square terraces, each approximately 2.57 meters (8.4 ft) high, with a 6-meter (20 ft) high temple upon the summit. The sides of the pyramid are approximately 55.3 meters (181 ft) at the base and rise at an angle of 53°, although that varies slightly for each side. The four faces of the pyramid have protruding stairways that rise at an angle of 45°. The talud walls of each terrace slant at an angle of between 72° and 74°. At
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#17327719827781692-448: A single dynastic lineage . Instead, the city's political organization could have been structured by a " multepal " system, which is characterized as rulership through council composed of members of elite ruling lineages. This theory was popular in the 1990s, but in recent years, the research that supported the concept of the "multepal" system has been called into question, if not discredited. The current belief trend in Maya scholarship
1833-524: A single unified empire. The Mixtecs would eventually be conquered by the Aztecs until the Spanish conquest. The Mixtecs saw the Spanish conquest as an opportunity for liberation and established agreements with the conquistadors that allowed them to preserve their cultural traditions, though relatively few sections resisted Spanish rule. The Totonac civilization was concentrated in the present-day states of Veracruz and Puebla . The Totonacs were responsible for
1974-401: A sport than a science and so the underground karst caves and their associated watercourses were, from a scientific perspective, understudied. Karst is most strongly developed in dense carbonate rock , such as limestone, that is thinly bedded and highly fractured . Karst is not typically well developed in chalk , because chalk is highly porous rather than dense, so the flow of groundwater
2115-489: A statue of a figure on its back, knees drawn up, upper torso raised on its elbows with a plate on its stomach. Augustus Le Plongeon called it "Chaacmol" (later renamed " Chac Mool ", which has been the term to describe all types of this statuary found in Mesoamerica). Teobert Maler and Alfred Maudslay explored Chichén in the 1880s and both spent several weeks at the site and took extensive photographs. Maudslay published
2256-529: A well in a fracture trace or intersection of fracture traces increases the likelihood to encounter good water production. Voids in karst aquifers can be large enough to cause destructive collapse or subsidence of the ground surface that can initiate a catastrophic release of contaminants. Groundwater flow rate in karst aquifers is much more rapid than in porous aquifers. For example, in the Barton Springs Edwards aquifer, dye traces measured
2397-505: Is a UNESCO World Heritage Site. Many karst-related terms derive from South Slavic languages , entering scientific vocabulary through early research in the Western Balkan Dinaric Alpine karst. The study of the various aspects of karst regions is called karstology. This includes biological, chemical, ecological, geomorphological, hydrogeological, hydrological, political, socio-economical, and other processes over
2538-562: Is a development of karst observed in geological history and preserved within the rock sequence, effectively a fossil karst. There are for example palaeokarst surfaces exposed within the Clydach Valley Subgroup of the Carboniferous Limestone sequence of South Wales which developed as sub-aerial weathering of recently formed limestones took place during periods of non-deposition within the early part of
2679-538: Is a karst landscape which is developed beneath a cover of insoluble rocks. Typically this will involve a cover of sandstone overlying limestone strata undergoing solution. In the United Kingdom for example extensive doline fields have developed at Cefn yr Ystrad , Mynydd Llangatwg and Mynydd Llangynidr in South Wales across a cover of Twrch Sandstone which overlies concealed Carboniferous Limestone ,
2820-678: Is currently divided into two general approaches. The first is the short chronology theory with the first movement beyond Alaska into the Americas occurring no earlier than 14,000–17,000 years ago, followed by successive waves of immigrants. The second belief is the long chronology theory , which proposes that the first group of people entered the hemisphere at a much earlier date, possibly 50,000–40,000 years ago or earlier. Artifacts have been found in both North and South America which have been dated to 14,000 years ago, and accordingly humans have been proposed to have reached Cape Horn at
2961-468: Is developed in areas where salt is undergoing solution underground. It can lead to surface depressions and collapses which present a geo-hazard. Karst areas tend to have unique types of forests. The karst terrain is difficult for humans to traverse, so that their ecosystems are often relatively undisturbed. The soil tends to have a high pH, which encourages growth of unusual species of orchids, palms, mangroves, and other plants. Paleokarst or palaeokarst
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#17327719827783102-636: Is frequently unseen until the roof of a cavern suddenly collapses. Such events have swallowed homes, cattle, cars, and farm machinery. In the United States, sudden collapse of such a cavern-sinkhole swallowed part of the collection of the National Corvette Museum in Bowling Green, Kentucky in 2014. The world's largest limestone karst is Australia's Nullarbor Plain . Slovenia has the world's highest risk of sinkholes, while
3243-411: Is nearly a mile across. Mound building was continued by succeeding cultures, who built numerous sites in the middle Mississippi and Ohio River valleys as well, adding effigy mounds , conical and ridge mounds, and other shapes. The Woodland period of North American pre-Columbian cultures lasted from roughly 1000 BCE to 1000 CE. The term was coined in the 1930s and refers to prehistoric sites between
3384-399: Is not concentrated along fractures. Karst is also most strongly developed where the water table is relatively low, such as in uplands with entrenched valleys , and where rainfall is moderate to heavy. This contributes to rapid downward movement of groundwater, which promotes dissolution of the bedrock, whereas standing groundwater becomes saturated with carbonate minerals and ceases to dissolve
3525-522: Is reflected in the oral histories of the indigenous peoples, described by a wide range of traditional creation stories which often say that a given people have been living in a certain territory since the creation of the world. Throughout thousands of years, paleo-Indian people domesticated, bred, and cultivated many plant species, including crops that now constitute 50–60% of worldwide agriculture. In general, Arctic, Subarctic, and coastal peoples continued to live as hunters and gatherers, while agriculture
3666-491: Is some evidence that karst may occur in more weathering -resistant rocks such as quartzite given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. In regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of paleokarst (buried karst in
3807-593: Is the Olmec. This civilization established the cultural blueprint by which all succeeding indigenous civilizations would follow in Mexico. Pre-Olmec civilization began with the production of pottery in abundance, around 2300 BCE in the Grijalva River delta. Between 1600 and 1500 BCE, the Olmec civilization had begun, with the consolidation of power at their capital, a site today known as San Lorenzo Tenochtitlán near
3948-634: Is the determinant factor for the number of gene lineages and founding haplotypes present in today's Indigenous populations . Human settlement of the Americas occurred in stages from the Bering Sea coastline , with an initial 20,000-year layover on Beringia for the founding population . The microsatellite diversity and distributions of the Y lineage specific to South America indicate that certain Amerindian populations have been isolated since
4089-621: Is the following: In very rare conditions, oxidation can play a role. Oxidation played a major role in the formation of ancient Lechuguilla Cave in the US state of New Mexico and is presently active in the Frasassi Caves of Italy. The oxidation of sulfides leading to the formation of sulfuric acid can also be one of the corrosion factors in karst formation. As oxygen (O 2 )-rich surface waters seep into deep anoxic karst systems, they bring oxygen, which reacts with sulfide present in
4230-607: Is toward the more traditional model of the Maya kingdoms of the Classic Period southern lowlands in Mexico . Chichén Itzá was a major economic power in the northern Maya lowlands during its apogee. Participating in the water-borne circum-peninsular trade route through its port site of Isla Cerritos on the north coast, Chichen Itza was able to obtain locally unavailable resources from distant areas such as obsidian from central Mexico and gold from southern Central America. Between AD 900 and 1050 Chichén Itzá expanded to become
4371-704: The Americas via the Bering Land Bridge (Beringia), now the Bering Strait , and possibly along the coast. Genetic evidence found in Indigenous peoples ' maternally inherited mitochondrial DNA (mtDNA) supports the theory of multiple genetic populations migrating from Asia. After crossing the land bridge, they moved southward along the Pacific coast and through an interior ice-free corridor. Throughout millennia, Paleo-Indians spread throughout
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4512-601: The Archaic Period , numerous archaeological cultures have been identified. The unstable climate led to widespread migration, with early Paleo-Indians soon spreading throughout the Americas, diversifying into many hundreds of culturally distinct tribes. The Paleo-Indians were hunter-gatherers , likely characterized by small, mobile bands consisting of approximately 20 to 50 members of an extended family. These groups moved from place to place as preferred resources were depleted and new supplies were sought. During much of
4653-670: The Archaic period and the Mississippian cultures . The Adena culture and the ensuing Hopewell tradition during this period built monumental earthwork architecture and established continent-spanning trade and exchange networks. This period is considered a developmental stage without any massive changes in a short period but instead has a continuous development in stone and bone tools, leatherworking, textile manufacture, tool production, cultivation, and shelter construction. Some Woodland people continued to use spears and atlatls until
4794-675: The Chilam Balam books indicates another, earlier name for this city prior to the arrival of the Itza hegemony in northern Yucatán. While most sources agree the first word means seven, there is considerable debate as to the correct translation of the rest. This earlier name is difficult to define because of the absence of a single standard of orthography, but it is represented variously as Uuc Yabnal ("Seven Great House"), Uuc Hab Nal ("Seven Bushy Places"), Uucyabnal ("Seven Great Rulers") or Uc Abnal ("Seven Lines of Abnal"). This name, dating to
4935-702: The Cliff Palace of Mesa Verde National Park in Colorado and the Great Houses in Chaco Canyon , New Mexico . The Puebloans also constructed a road system that stretched from Chaco Canyon to Kutz Canyon in the San Juan Basin . The Ancestral Puebloans are also known as "Anasazi", though the term is controversial, as the present-day Pueblo peoples consider the term to be derogatory, due to
5076-697: The Maya script . Other accounts also suggest that the Huastecs migrated as a result of the Classic Maya collapse around the year 900 CE. The Zapotecs were a civilization that thrived in the Oaxaca Valley from the late 6th century BCE until their downfall at the hands of the Spanish conquistadors. The city of Monte Albán was an important religious center for the Zapotecs and served as the capital of
5217-664: The Olmec , Teotihuacan , Mayas , Zapotecs , Mixtecs , Huastecs , Purepecha , Toltecs , and Mexica / Aztecs . The Mexica civilization is also known as the Aztec Triple Alliance since they were three smaller kingdoms loosely united together. These Indigenous civilizations are credited with many inventions: building pyramid temples, mathematics , astronomy , medicine, writing, highly accurate calendars , fine arts , intensive agriculture, engineering , an abacus calculator, and complex theology . They also invented
5358-458: The Spanish conquest of El Salvador , Cuzcatlan was forced to surrender to conquistador Pedro de Alvarado in 1528. Karst Karst ( / k ɑːr s t / ) is a topography formed from the dissolution of soluble carbonate rocks such as limestone and dolomite . It is characterized by features like poljes above and drainage systems with sinkholes and caves underground. There
5499-463: The Tlingit , Haida , Chumash , Mandan , Hidatsa , and others, and some established large settlements, even cities, such as Cahokia , in what is now Illinois . Mesoamerica is the region extending from central Mexico south to the northwestern border of Costa Rica that gave rise to a group of stratified, culturally related agrarian civilizations spanning an approximately 3,000-year period before
5640-636: The range of the Dinaric Alps , stretching from the northeastern corner of Italy above the city of Trieste , across the Balkan peninsula along the coast of the eastern Adriatic to Kosovo and North Macedonia , where the massif of the Šar Mountains begins. The karst zone is at the northwesternmost section, described in early topographical research as a plateau between Italy and Slovenia . Languages preserving this form include Italian : Carso , German : Karst , and Albanian : karsti . In
5781-435: The stratigraphic column ) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock , and much of this is found in porous karst systems. The English word karst was borrowed from German Karst in the late 19th century, which entered German usage much earlier, to describe a number of geological, geomorphological, and hydrological features found within
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5922-526: The " Cenote Sagrado " or "Sacred Cenote" (also variously known as the Sacred Well or Well of Sacrifice), is the most famous. In 2015, scientists determined that there is a hidden cenote under the Temple of Kukulkan , which has never been seen by archeologists. According to post-Conquest sources (Maya and Spanish), pre-Columbian Maya sacrificed objects and human beings into the cenote as a form of worship to
6063-630: The Americas and oral histories. Other civilizations, contemporaneous with the colonial period, were documented in European accounts of the time. For instance, the Maya civilization maintained written records, which were often destroyed by Christian Europeans such as Diego de Landa , who viewed them as pagan but sought to preserve native histories. Despite the destruction, a few original documents have survived, and others were transcribed or translated into Spanish, providing modern historians with valuable insights into ancient cultures and knowledge. Before
6204-803: The Cenote Sagrado, in 1961 and 1967. The first was sponsored by the National Geographic, and the second by private interests. Both projects were supervised by Mexico's National Institute of Anthropology and History (INAH). INAH has conducted an ongoing effort to excavate and restore other monuments in the archeological zone, including the Osario, Akab Dzib, and several buildings in Chichén Viejo (Old Chichen). In 2009, to investigate construction that predated El Castillo, Yucatec archeologists began excavations adjacent to El Castillo under
6345-477: The Europeans arrived, Indigenous peoples of North America had a wide range of lifeways from sedentary, agrarian societies to semi-nomadic hunter-gatherer societies. Many formed new tribes or confederations in response to European colonization. These are often classified by cultural regions , loosely based on geography. These can include the following: Numerous pre-Columbian societies were sedentary, such as
6486-878: The Group of the Initial Series, Group of the Lintels, and Group of the Old Castle. The Puuc-style architecture is concentrated in the Old Chichen area, and also the earlier structures in the Nunnery Group (including the Las Monjas, Annex and La Iglesia buildings); it is also represented in the Akab Dzib structure. The Puuc-style building feature the usual mosaic-decorated upper façades characteristic of
6627-668: The Hohokam, they constructed kivas and great houses as well as ballcourts . Several of the Sinagua ruins include Montezuma Castle , Wupatki , and Tuzigoot . The Salado resided in the Tonto Basin in southeastern Arizona from 1150 CE to the 15th century. Archaeological evidence suggests that they traded with far-away cultures, as evidenced by the presence of seashells from the Gulf of California and macaw feathers from Mexico. Most of
6768-547: The Late Classic Period, is recorded both in the book of Chilam Balam de Chumayel and in hieroglyphic texts in the ruins. Chichén Itzá is located in the eastern portion of Yucatán state in Mexico. The northern Yucatán Peninsula is karst , and the rivers in the interior all run underground. There are four visible, natural sink holes, called cenotes , that could have provided plentiful water year round at Chichen, making it attractive for settlement. Of these cenotes,
6909-683: The Maya city of Chichen Itza . The Toltecs established vast trading relations with other Mesoamerican civilizations in Central America and the Puebloans in present-day New Mexico . During the Post-Classic era, the Toltecs suffered a subsequent collapse in the early 12th century, due to famine and civil war. The Toltec civilization was so influential to the point where many groups such as the Aztecs claimed to be descended from. With
7050-454: The Maya civilization cannot be overstated: it transformed political power, artistic depictions, and the nature of economics. Within the city of Teotihuacan was a diverse and cosmopolitan population. Most of the regional ethnicities of Mexico were represented in the city, such as Zapotecs from the Oaxaca region. They lived in apartment communities where they worked their trades and contributed to
7191-543: The Maya rain god Chaac . Edward Herbert Thompson dredged the Cenote Sagrado from 1904 to 1910, and recovered artifacts of gold, jade , pottery and incense , as well as human remains. A study of human remains taken from the Cenote Sagrado found that they had wounds consistent with human sacrifice. Several archeologists in the late 1980s suggested that unlike previous Maya polities of the Early Classic, Chichén Itzá may not have been governed by an individual ruler or
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#17327719827787332-778: The Mississippian groups had vanished, and vast swaths of their territory were virtually uninhabited. The Ancestral Puebloans thrived in what is now the Four Corners region in the United States. It is commonly suggested that the culture of the Ancestral Puebloans emerged during the Early Basketmaker II Era during the 12th century BCE. The Ancestral Puebloans were a complex Oasisamerican society that constructed kivas , multi-story houses, and apartment blocks made from stone and adobe, such as
7473-483: The Olmec resulted in a power vacuum in Mexico. Emerging from that vacuum was Teotihuacan, first settled in 300 BCE. By 150 CE, Teotihuacan had risen to become the first true metropolis of what is now called North America. Teotihuacan established a new economic and political order never before seen in Mexico. Its influence stretched across Mexico into Central America, founding new dynasties in the Maya cities of Tikal , Copan , and Kaminaljuyú . Teotihuacan's influence over
7614-586: The Olmecs, Teotihuacan, the Toltecs, the Mexica, and the Mayas. These civilizations (except for the politically fragmented Maya) extended their reach across Mesoamerica—and beyond—like no others. They consolidated power and distributed influence in matters of trade, art, politics, technology, and theology. Other regional power players made economic and political alliances with these civilizations over 4,000 years. Many made war with them, but almost all peoples found themselves within one of their spheres of influence. Regional communications in ancient Mesoamerica have been
7755-430: The Osario (High Priest's Temple). Thompson is most famous for dredging the Cenote Sagrado (Sacred Cenote) from 1904 to 1910, where he recovered artifacts of gold, copper and carved jade, as well as the first-ever examples of what were believed to be pre-Columbian Maya cloth and wooden weapons. Thompson shipped the bulk of the artifacts to the Peabody Museum at Harvard University . In 1913, the Carnegie Institution accepted
7896-550: The Paleo-Indian period, bands are thought to have subsisted primarily through hunting now-extinct giant land animals such as mastodon and ancient bison . Paleo-Indian groups carried a variety of tools, including distinctive projectile points and knives, as well as less distinctive butchering and hide-scraping implements. The vastness of the North American continent, and the variety of its climates, ecology , vegetation , fauna , and landforms, led ancient peoples to coalesce into many distinct linguistic and cultural groups. This
8037-459: The Spanish colonists. The Wichita people were a loose confederation that consisted of sedentary agriculturalists and hunter-gatherers who resided in the eastern Great Plains . They lived in permanent settlements and even established a city called Etzanoa , which had a population of 20,000 people. The city was eventually abandoned around the 18th century after it was encountered by Spanish conquistadors Jusepe Gutierrez and Juan de Oñate . When
8178-413: The Temple of Warriors and the Caracol, among other major buildings. At the same time, the Mexican government excavated and restored El Castillo (Temple of Kukulcán) and the Great Ball Court. In 1926, the Mexican government charged Edward Thompson with theft, claiming he stole the artifacts from the Cenote Sagrado and smuggled them out of the country. The government seized the Hacienda Chichén. Thompson, who
8319-463: The Terminal Classic (c. AD 800–900) and into the early portion of the Postclassic period (c. AD 900–1200). The site exhibits a multitude of architectural styles, reminiscent of styles seen in central Mexico and of the Puuc and Chenes styles of the Northern Maya lowlands. The presence of central Mexican styles was once thought to have been representative of direct migration or even conquest from central Mexico, but most contemporary interpretations view
8460-445: The Tlaxcalans for preserving their culture and for their assistance in defeating the Aztecs. The Tlaxcalans would once again assist to the Spaniards during the Mixtón War and the conquest of Guatemala . Cuzcatlan was a Pipil confederacy of kingdoms and city-states located in present-day El Salvador . According to legend, Cuzcatlan was established by Toltec migrants during the Classic Maya collapse in approximately 1200 CE. During
8601-405: The Yucatán Peninsula, decimated his forces but ended with the establishment of a small fort at Xaman Haʼ , south of what is today Cancún . Montejo returned to Yucatán in 1531 with reinforcements and established his main base at Campeche on the west coast. He sent his son, Francisco Montejo The Younger, in late 1532 to conquer the interior of the Yucatán Peninsula from the north. The objective from
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#17327719827788742-399: The accents are sometimes maintained in other languages to show that both parts of the name are stressed on their final syllable. Other references prefer the modern Maya orthography, Chichʼen Itzaʼ (pronounced [tʃitʃʼen itsáʔ] ). This form preserves the phonemic distinction between chʼ and ch , since the base word chʼeʼen (which, however, is not stressed in Maya) begins with
8883-410: The base of the balustrades of the northeastern staircase are carved heads of a serpent. Mesoamerican cultures periodically superimposed larger structures over older ones, and the Temple of Kukulcán is one such example. In the mid-1930s, the Mexican government sponsored an excavation of the temple. After several false starts, they discovered a staircase under the north side of the pyramid. By digging from
9024-423: The base of the high interior walls are slanted benches with sculpted panels of teams of ball players. In one panel, one of the players has been decapitated; the wound emits streams of blood in the form of wriggling snakes. At one end of the Great Ball Court is the North Temple , also known as the Temple of the Bearded Man ( Templo del Hombre Barbado ). This small masonry building has detailed bas relief carving on
9165-511: The bedrock. The carbonic acid that causes karst features is formed as rain passes through Earth's atmosphere picking up carbon dioxide (CO 2 ), which readily dissolves in the water. Once the rain reaches the ground, it may pass through soil that provides additional CO 2 produced by soil respiration . Some of the dissolved carbon dioxide reacts with the water to form a weak carbonic acid solution, which dissolves calcium carbonate . The primary reaction sequence in limestone dissolution
9306-453: The beginning was to go to Chichén Itzá and establish a capital. Montejo the Younger eventually arrived at Chichén Itzá, which he renamed Ciudad Real. At first he encountered no resistance, and set about dividing the lands around the city and awarding them to his soldiers. The Maya became more hostile over time, and eventually they laid siege to the Spanish, cutting off their supply line to the coast, and forcing them to barricade themselves among
9447-443: The calendar, were bequest from the former inhabitants of Tula, the Toltecs. The Mexica-Aztecs were the rulers of much of central Mexico by about 1400 (while Yaquis , Coras, and Apaches commanded sizable regions of northern desert), having subjugated most of the other regional states by the 1470s. At their peak, the Valley of Mexico where the Aztec Empire presided, saw a population growth that included nearly one million people during
9588-447: The chronicles state, there were no survivors, so Hunac Ceel leaped into the Cenote Sagrado, and when removed, prophesied his own ascension. While there is some archeological evidence that indicates Chichén Itzá was at one time looted and sacked, there appears to be greater evidence that it could not have been by Mayapan, at least not when Chichén Itzá was an active urban center. Archeological data now indicates that Chichen Itza declined as
9729-457: The city's economic and cultural prowess. Teotihuacan's economic pull impacted areas in northern Mexico as well. It was a city whose monumental architecture reflected a monumental new era in Mexican civilization, declining in political power about 650 CE—but lasting in cultural influence for the better part of a millennium, to around 950 CE. Contemporary to Teotihuacan's greatness was that of the Maya civilization. The period between 250 CE and 650 CE
9870-400: The city. In 1860, Désiré Charnay surveyed Chichén Itzá and took numerous photographs that he published in Cités et ruines américaines (1863). Visitors to Chichén Itzá during the 1870s and 1880s came with photographic equipment and recorded more accurately the condition of several buildings. In 1875, Augustus Le Plongeon and his wife Alice Dixon Le Plongeon visited Chichén, and excavated
10011-406: The civilizations in its area, the Tarascan Empire was the most prominent in metallurgy, harnessing copper, silver, and gold to create items such as tools, decorations, and even weapons and armor. Bronze was also used. The great victories over the Aztecs by the Tarascans cannot be understated. Nearly every war they fought in resulted in a Tarascan victory. Because the Tarascan Empire had little links to
10152-747: The cliff dwellings constructed by the Salado are primarily located in Tonto National Monument . The Iroquois League of Nations or "People of the Long House" was a politically advanced, democratic society, which is thought by some historians to have influenced the United States Constitution , with the Senate passing a resolution to this effect in 1988. Other historians have contested this interpretation and believe
10293-404: The coast in southeast Veracruz . The Olmec influence extended across Mexico, into Central America , and along the Gulf of Mexico . They transformed many peoples' thinking toward a new way of government, pyramid temples, writing, astronomy, art, mathematics, economics, and religion. Their achievements paved the way for the Maya civilization and the civilizations in central Mexico. The decline of
10434-466: The collapse of both cities. According to some colonial Mayan sources (e.g., the Book of Chilam Balam of Chumayel), Hunac Ceel , ruler of Mayapan , conquered Chichén Itzá in the 13th century. Hunac Ceel supposedly prophesied his own rise to power. According to custom at the time, individuals thrown into the Cenote Sagrado were believed to have the power of prophecy if they survived. During one such ceremony,
10575-450: The complexity of karst aquifers, and need to be supplemented with dye traces , measurement of spring discharges, and analysis of water chemistry. U.S. Geological Survey dye tracing has determined that conventional groundwater models that assume a uniform distribution of porosity are not applicable for karst aquifers. Linear alignment of surface features such as straight stream segments and sinkholes develop along fracture traces . Locating
10716-553: The de Soto expedition wandered the American Southeast for four years, becoming more bedraggled, losing more men and equipment, and eventually arriving in Mexico as a fraction of its original size. The local people fared much worse though, as the fatalities of diseases introduced by the expedition devastated the populations and produced much social disruption. By the time Europeans returned a hundred years later, nearly all of
10857-672: The decline of the Toltec civilization came political fragmentation in the Valley of Mexico . Into this new political game of contenders to the Toltec throne stepped outsiders: the Mexica . They were also a desert people, one of seven groups who formerly called themselves "Azteca", in memory of Aztlán , but they changed their name after years of migrating. Since they were not from the Valley of Mexico , they were initially seen as crude and unrefined in
10998-514: The development of archaeology in the 19th century, historians of the pre-Columbian period mainly interpreted the records of the European conquerors and the accounts of early European travelers and antiquaries. It was not until the nineteenth century that the work of people such as John Lloyd Stephens , Eduard Seler , and Alfred Maudslay , and institutions such as the Peabody Museum of Archaeology and Ethnology of Harvard University , led to
11139-404: The direction of Rafael (Rach) Cobos. Chichen Itza was one of the largest Maya cities, with the relatively densely clustered architecture of the site core covering an area of at least 5 square kilometers (1.9 sq mi). Smaller scale residential architecture extends for an unknown distance beyond this. The city was built upon broken terrain, which was artificially levelled in order to build
11280-546: The east and west coasts of the peninsula. The earliest hieroglyphic date discovered at Chichen Itza is equivalent to 832 AD, while the last known date was recorded in the Osario temple in 998. The Late Classic city was centered upon the area to the southwest of the Xtoloc cenote, with the main architecture represented by the substructures now underlying the Las Monjas and Observatorio and the basal platform upon which they were built. Chichén Itzá rose to regional prominence toward
11421-609: The empire from 700 BCE to 700 CE. The Zapotecs resisted the expansion of the Aztecs until they were subjugated in 1502 under Aztec emperor Ahuitzotl . After the Spanish conquest of the Aztec Empire , the Zapotecs resisted Spanish rule until King Cosijopii I surrendered in 1563. Like the Zapotecs, the Mixtecs thrived in the Oaxaca Valley. The Mixtecs consisted of separate independent kingdoms and city-states, rather than
11562-595: The end of the Early Classic period (roughly 600 AD). It was, however, toward the end of the Late Classic and into the early part of the Terminal Classic that the site became a major regional capital, centralizing and dominating political, sociocultural, economic, and ideological life in the northern Maya lowlands. The ascension of Chichen Itza roughly correlates with the decline and fragmentation of
11703-595: The end of the period when they were replaced by bows and arrows . The Mississippian culture was spread across the Southeast and Midwest of what is today the United States, from the Atlantic coast to the edge of the plains, from the Gulf of Mexico to the Upper Midwest, although most intensively in the area along the Mississippi River and Ohio River . One of the distinguishing features of this culture
11844-462: The establishment of cities, such as El Tajín as important commercial trading centers. The Totonacs would later assist in the Spanish conquest of the Aztec Empire as an opportunity to liberate themselves from Aztec military imperialism. The Toltec civilization was established in the 8th century CE. The Toltec Empire expanded its political borders to as far south as the Yucatán peninsula , including
11985-403: The first Cazonci, Tariacuri, united these communities and built them into one of the most advanced civilizations in Mesoamerica. Their capital at Tzintzuntzan was just one of the many cities—there were ninety more under its control. The Tarascan Empire was among the largest in Central America, so it is no surprise that they routinely came into conflict with the neighboring Aztec Empire . Out of all
12126-625: The first long-form description of Chichen Itza in his book, Biologia Centrali-Americana . In 1894, the United States Consul to Yucatán, Edward Herbert Thompson , purchased the Hacienda Chichén , which included the ruins of Chichen Itza. For 30 years, Thompson explored the ancient city. His discoveries included the earliest dated carving upon a lintel in the Temple of the Initial Series and the excavation of several graves in
12267-557: The fissures. The enlarged fissures allow a larger quantity of water to enter which leads to a progressive enlargement of openings. Abundant small openings store a large quantity of water. The larger openings form a conduit system that drains the aquifer to springs. Characterization of karst aquifers requires field exploration to locate sinkholes, swallets , sinking streams , and springs in addition to studying geologic maps . Conventional hydrogeologic methods such as aquifer tests and potentiometric mapping are insufficient to characterize
12408-400: The former Toltec Empire , they were also quite independent in culture from their neighbors. The Aztecs, Tlaxcaltec , Olmec, Mixtec, Maya, and others were very similar to each other, however. This is because they were all directly preceded by the Toltecs, and they therefore shared almost identical cultures. The Tarascans, however, possessed a unique religion, as well as other things. Tlaxcala
12549-466: The global demand for drinkable water. Farming in karst areas must take into account the lack of surface water. The soils may be fertile enough, and rainfall may be adequate, but rainwater quickly moves through the crevices into the ground, sometimes leaving the surface soil parched between rains. The karst topography also poses peculiar difficulties for human inhabitants. Sinkholes can develop gradually as surface openings enlarge, but progressive erosion
12690-596: The impact was minimal or did not exist, pointing to numerous differences between the two systems and the ample precedents for the constitution in European political thought. The Calusa were a complex paramountcy/kingdom that resided in southern Florida . Instead of agriculture, the Calusa economy relied on abundant fishing. According to Spanish sources, the "king's house" at Mound Key was large enough to house 2,000 people. The Calusa ultimately collapsed into extinction at around 1750 after succumbing to diseases introduced by
12831-687: The influence that astronomical activities had upon Mesoamerican people before the arrival of Europeans. Many of the later Mesoamerican civilizations carefully built their cities and ceremonial centers according to specific astronomical events. The biggest Mesoamerican cities, such as Teotihuacan , Tenochtitlan , and Cholula , were among the largest in the world. These cities grew as centers of commerce, ideas, ceremonies, and theology, and they radiated influence outwards onto neighboring cultures in central Mexico. While many city-states, kingdoms, and empires competed with one another for power and prestige, Mesoamerica can be said to have had five major civilizations:
12972-429: The initial colonization of the region. The Na-Dené , Inuit , and Indigenous Alaskan populations exhibit haplogroup Q-M242 (Y-DNA) mutations, however, and are distinct from other Indigenous peoples with various mtDNA mutations. This suggests that the earliest migrants into the northern extremes of North America and Greenland derived from later populations. Asian nomadic Paleo-Indians are thought to have entered
13113-549: The inner walls, including a center figure that has carving under his chin that resembles facial hair. At the south end is another, much bigger temple, but in ruins. Built into the east wall are the Temples of the Jaguar . The Upper Temple of the Jaguar overlooks the ball court and has an entrance guarded by two, large columns carved in the familiar feathered serpent motif. Inside there is a large mural, much destroyed, which depicts
13254-456: The karst groundwater flow rates from 0.5 to 7 miles per day (0.8 to 11.3 km/d). The rapid groundwater flow rates make karst aquifers much more sensitive to groundwater contamination than porous aquifers. Groundwater in karst areas is also just as easily polluted as surface streams, because Karst formations are cavernous and highly permeable, resulting in reduced opportunity for contaminant filtration. Well water may also be unsafe as
13395-534: The karst regions of the Balkans, Cvijić's 1893 publication Das Karstphänomen describes landforms such as karren, dolines and poljes . In a 1918 publication, Cvijić proposed a cyclical model for karst landscape development. Karst hydrology emerged as a discipline in the late 1950s and the early 1960s in France. Previously, the activities of cave explorers, called speleologists , had been dismissed as more of
13536-562: The last-named locality having been declared a site of special scientific interest in respect of it. Kegelkarst is a type of tropical karst terrain with numerous cone-like hills, formed by cockpits, mogotes , and poljes and without strong fluvial erosion processes. This terrain is found in Cuba, Jamaica, Indonesia, Malaysia, the Philippines, Puerto Rico, southern China, Myanmar, Thailand, Laos and Vietnam. Salt karst (or 'halite karst')
13677-472: The late Aztec period (1350–1519). Their capital, Tenochtitlan , is the site of modern-day Mexico City . At its peak, it was one of the largest cities in the world with population estimates of 200,000–300,000. The market established there was the largest ever seen by the conquistadores on arrival. Initially, the lands that would someday comprise the lands of the powerful Tarascan Empire were inhabited by several independent communities. Around 1300, however,
13818-607: The late twentieth century, archeologists have studied, analyzed, and dated these sites, realizing that the earliest complexes were built by hunter-gatherer societies, whose people occupied the sites on a seasonal basis. Watson Brake , a large complex of eleven platform mounds, was constructed beginning in 3400 BCE and added to over 500 years. This has changed earlier assumptions that complex construction arose only after societies had adopted agriculture, and become sedentary, with stratified hierarchy and usually ceramics. These ancient people had organized to build complex mound projects under
13959-412: The local South Slavic languages , all variations of the word are derived from a Romanized Illyrian base (yielding Latin : carsus , Dalmatian : carsus ), later metathesized from the reconstructed form * korsъ into forms such as Slovene : kras and Serbo-Croatian : krš , kras , first attested in the 18th century, and the adjective form kraški in the 16th century. As
14100-555: The major architectural groups, with the greatest effort being expended in the levelling of the areas for the Castillo pyramid, and the Las Monjas, Osario and Main Southwest groups. The site contains many fine stone buildings in various states of preservation, and many have been restored. The buildings were connected by a dense network of paved causeways, called sacbeob . Archeologists have identified over 80 sacbeob criss-crossing
14241-399: The major centers of the southern Maya lowlands. As Chichén Itzá rose to prominence, the cities of Yaxuna (to the south) and Coba (to the east) were suffering decline. These two cities had been mutual allies, with Yaxuna dependent upon Coba. At some point in the 10th century Coba lost a significant portion of its territory, isolating Yaxuna, and Chichen Itza may have directly contributed to
14382-461: The majority of the Y-chromosome is unique and does not recombine during meiosis . This has the effect that the historical pattern of mutations can easily be studied. The pattern indicates Indigenous peoples of the Americas experienced two very distinctive genetic episodes: first with the initial peopling of the Americas and second with European colonization of the Americas . The former
14523-597: The monuments of the Temple of Kukulcán (El Castillo), Temple of Warriors and the Great Ball Court; The Osario Group, which includes the pyramid of the same name as well as the Temple of Xtoloc; and the Central Group, which includes the Caracol, Las Monjas, and Akab Dzib. South of Las Monjas, in an area known as Chichén Viejo (Old Chichén) and only open to archeologists, are several other complexes, such as
14664-647: The most dramatic of these formations can be seen in Thailand 's Phangnga Bay and at Halong Bay in Vietnam . Calcium carbonate dissolved into water may precipitate out where the water discharges some of its dissolved carbon dioxide. Rivers which emerge from springs may produce tufa terraces, consisting of layers of calcite deposited over extended periods of time. In caves, a variety of features collectively called speleothems are formed by deposition of calcium carbonate and other dissolved minerals. Interstratal karst
14805-430: The mouth of the well of the Itza." This derives from chi' , meaning "mouth" or "edge", and chʼen or chʼeʼen , meaning "well". Itzá is the name of an ethnic-lineage group that gained political and economic dominance of the northern peninsula. One possible translation for Itza is "enchanter (or enchantment) of the water," from its (itz), "sorcerer", and ha , "water". The name is spelled Chichén Itzá in Spanish, and
14946-443: The north-west of the Castillo is the most impressive. It is the largest and best preserved ball court in ancient Mesoamerica. It measures 168 by 70 meters (551 by 230 ft). The parallel platforms flanking the main playing area are each 95 meters (312 ft) long. The walls of these platforms stand 8 meters (26 ft) high; set high up in the center of each of these walls are rings carved with intertwined feathered serpents. At
15087-516: The only true writing system native to the Americas using pictographs and syllabic elements in the form of texts and codices inscribed on stone, pottery, wood, or perishable books made from bark paper. The Huastecs were a Maya ethnic group that migrated northwards to the Gulf Coast of Mexico. The Huastecs are considered to be distinct from the Maya civilization, as they separated from the main Maya branch at around 2000 BCE and did not possess
15228-657: The people abandoned their settlements, likely due to drought. The Mogollon resided in the present-day states of Arizona , New Mexico, and Texas as well as Sonora and Chihuahua . Like most other cultures in Oasisamerica, the Mogollon constructed sophisticated kivas and cliff dwellings. In the village of Paquimé , the Mogollon are revealed to have housed pens for scarlet macaws , which were introduced from Mesoamerica through trade. The Sinagua were hunter-gatherers and agriculturalists who lived in central Arizona. Like
15369-709: The period. Sedimentation resumed and further limestone strata were deposited on an irregular karst surface, the cycle recurring several times in connection with fluctuating sea levels over prolonged periods. Pseudokarsts are similar in form or appearance to karst features but are created by different mechanisms. Examples include lava caves and granite tors —for example, Labertouche Cave in Victoria, Australia —and paleocollapse features. Mud Caves are an example of pseudokarst. Karst formations have unique hydrology, resulting in many unusual features. A karst fenster (karst window) occurs when an underground stream emerges onto
15510-416: The prehistoric Americas . The culture reached its peak in about 1200–1400 CE, and in most places, it seems to have been in decline before the arrival of Europeans. Many Mississippian peoples were encountered by the expedition of Hernando de Soto in the 1540s, mostly with disastrous results for both sides. Unlike the Spanish expeditions in Mesoamerica, which conquered vast empires with relatively few men,
15651-408: The presence of these non-Maya styles more as the result of cultural diffusion . Chichén Itzá was one of the largest Maya cities and it was likely to have been one of the mythical great cities, or Tollans , referred to in later Mesoamerican literature. The city may have had the most diverse population in the Maya world, a factor that could have contributed to the variety of architectural styles at
15792-633: The proposal of archeologist Sylvanus G. Morley and committed to conduct long-term archeological research at Chichen Itza. The Mexican Revolution and the following government instability, as well as World War I, delayed the project by a decade. In 1923, the Mexican government awarded the Carnegie Institution a ten-year permit (later extended by another ten years) to allow U.S. archeologists to conduct extensive excavation and restoration of Chichen Itza. Carnegie researchers excavated and restored
15933-481: The public. Around the Spring and Autumn equinoxes , in the late afternoon, the northwest corner of the pyramid casts a series of triangular shadows against the western balustrade on the north side that evokes the appearance of a serpent wriggling down the staircase, which some scholars have suggested is a representation of the feathered-serpent deity, Kukulcán. It is a widespread belief that this light-and-shadow effect
16074-624: The reconsideration and criticism of the early European sources. Now, the scholarly study of pre-Columbian cultures is most often based on scientific and multidisciplinary methodologies. The haplogroup most commonly associated with Indigenous Amerindian genetics is Y-chromosome haplogroup Q1a3a . Researchers have found genetic evidence that the Q1a3a haplogroup has been in South America since at least 18,000 BCE. Y-chromosome DNA , like mtDNA , differs from other nuclear chromosomes in that
16215-597: The region was a factor in the conquistadors' decision to locate a capital there. According to post-Conquest sources, both Spanish and Maya, the Cenote Sagrado remained a place of pilgrimage. In 1526, Spanish Conquistador Francisco de Montejo (a veteran of the Grijalva and Cortés expeditions) successfully petitioned the King of Spain for a charter to conquer Yucatán. His first campaign in 1527, which covered much of
16356-515: The rest of North and South America. Exactly when the first people migrated into the Americas is the subject of much debate. One of the earliest identifiable cultures was the Clovis culture , with sites dating from some 13,000 years ago. However, older sites dating back to 20,000 years ago have been claimed. Some genetic studies estimate the colonization of the Americas dates from between 40,000 and 13,000 years ago. The chronology of migration models
16497-780: The river flows into a cave in a formation known as the Madison Limestone and then rises again 800 m ( 1 ⁄ 2 mi) down the canyon in a placid pool. A turlough is a unique type of seasonal lake found in Irish karst areas which are formed through the annual welling-up of water from the underground water system. Main Article Aquifer#Karst Karst aquifers typically develop in limestone . Surface water containing natural carbonic acid moves down into small fissures in limestone. This carbonic acid gradually dissolves limestone thereby enlarging
16638-539: The ruins of the ancient city. Months passed, but no reinforcements arrived. Montejo the Younger attempted an all-out assault against the Maya and lost 150 of his remaining troops. He was forced to abandon Chichén Itzá in 1534 under cover of darkness. By 1535, all Spanish had been driven from the Yucatán Peninsula. Montejo eventually returned to Yucatán and, by recruiting Maya from Campeche and Champoton, built
16779-461: The site, and extending in all directions from the city. Many of these stone buildings were originally painted in red, green, blue and purple colors. Pigments were chosen according to what was most easily available in the area. The site must be imagined as a colorful one, not like it is today. Just like Gothic cathedrals in Europe, colors provided a greater sense of completeness and contributed greatly to
16920-555: The site, with the most important being the Las Monjas group. Dominating the North Platform of Chichen Itza is the Temple of Kukulcán (a Maya feathered serpent deity similar to the Aztec Quetzalcoatl ). The temple was identified by the first Spaniards to see it, as El Castillo ("the castle"), and it regularly is referred to as such. This step pyramid stands about 30 meters (98 ft) high and consists of
17061-485: The site. The ruins of Chichén Itzá are federal property, and the site's stewardship is maintained by Mexico's Instituto Nacional de Antropología e Historia (National Institute of Anthropology and History). The land under the monuments had been privately owned until 29 March 2010, when it was purchased by the state of Yucatán. Chichén Itzá is one of the most visited archeological sites in Mexico with over 2.6 million tourists in 2017. The Maya name "Chichen Itza" means "At
17202-553: The southern tip of South America by this time. In that case, the Inuit would have arrived separately and at a much later date, probably no more than 2,000 years ago, moving across the ice from Siberia into Alaska. The North American climate was unstable as the ice age receded during the Lithic stage . It finally stabilized about 10,000 years ago; climatic conditions were then very similar to today's. Within this time frame, roughly about
17343-621: The style but differ from the architecture of the Puuc heartland in their block masonry walls, as opposed to the fine veneers of the Puuc region proper. At least one structure in the Las Monjas Group features an ornate façade and masked doorway that are typical examples of Chenes-style architecture, a style centered upon a region in the north of Campeche state, lying between the Puuc and Río Bec regions. Those structures with sculpted hieroglyphic script are concentrated in certain areas of
17484-564: The subject of considerable research. There is evidence of trade routes starting as far north as the Mexico Central Plateau , and going down to the Pacific coast. These trade routes and cultural contacts then went on as far as Central America . These networks operated with various interruptions from pre-Olmec times and up to the Late Classical Period (600–900 CE). The earliest known civilization in Mesoamerica
17625-649: The surface between layers of rock, cascades some distance, and then disappears back down, often into a sinkhole. Rivers in karst areas may disappear underground a number of times and spring up again in different places, even under a different name, like Ljubljanica , the "river of seven names". Another example of this is the Popo Agie River in Fremont County, Wyoming , where, at a site named "The Sinks" in Sinks Canyon State Park ,
17766-415: The surface, complex underground drainage systems (such as karst aquifers ) and extensive caves and cavern systems may form. Erosion along limestone shores, notably in the tropics , produces karst topography that includes a sharp makatea surface above the normal reach of the sea, and undercuts that are mostly the result of biological activity or bioerosion at or a little above mean sea level . Some of
17907-474: The symbolic impact of the buildings. The architecture encompasses a number of styles, including the Puuc and Chenes styles of the northern Yucatán Peninsula. The buildings of Chichen Itza are grouped in a series of architectonic sets, and each set was at one time separated from the other by a series of low walls. The three best known of these complexes are the Great North Platform, which includes
18048-1002: The system ( pyrite or hydrogen sulfide ) to form sulfuric acid (H 2 SO 4 ). Sulfuric acid then reacts with calcium carbonate, causing increased erosion within the limestone formation. This chain of reactions is: This reaction chain forms gypsum . The karstification of a landscape may result in a variety of large- or small-scale features both on the surface and beneath. On exposed surfaces, small features may include solution flutes (or rillenkarren), runnels , limestone pavement (clints and grikes), kamenitzas collectively called karren or lapiez. Medium-sized surface features may include sinkholes or cenotes (closed basins), vertical shafts, foibe (inverted funnel shaped sinkholes), disappearing streams, and reappearing springs . Large-scale features may include limestone pavements , poljes , and karst valleys. Mature karst landscapes, where more bedrock has been removed than remains, may result in karst towers , or haystack/eggbox landscapes. Beneath
18189-403: The top, they found another temple buried below the current one. Inside the temple chamber was a Chac Mool statue and a throne in the shape of Jaguar, painted red and with spots made of inlaid jade. The Mexican government excavated a tunnel from the base of the north staircase, up the earlier pyramid's stairway to the hidden temple, and opened it to tourists. In 2006, INAH closed the throne room to
18330-555: The visits to the Caribbean by Christopher Columbus. Mesoamerican is the adjective generally used to refer to that group of pre-Columbian cultures. This refers to an environmental area occupied by an assortment of ancient cultures that shared religious beliefs, art, architecture, and technology in the Americas for more than three thousand years. Between 2000 and 300 BCE, complex cultures began to form in Mesoamerica. Some matured into advanced pre-Columbian Mesoamerican civilizations such as
18471-461: The water may have run unimpeded from a sinkhole in a cattle pasture, bypassing the normal filtering that occurs in a porous aquifer . Sinkholes have often been used as farmstead or community trash dumps . Overloaded or malfunctioning septic tanks in karst landscapes may dump raw sewage directly into underground channels. Geologists are concerned with these negative effects of human activity on karst hydrology which, as of 2007 , supplied about 25% of
18612-553: The ways of the Nahua civilization. Through political maneuvers and ferocious martial skills, they managed to rule Mexico as the head of the 'Triple Alliance' which included two other Aztec cities, Tetxcoco and Tlacopan . Latecomers to Mexico's central plateau , the Mexica thought of themselves, nevertheless, as heirs of the civilizations that had preceded them. For them, arts, sculpture, architecture, engraving, feather-mosaic work, and
18753-515: The western Highland Rim in the eastern United States is at the second-highest risk of karst sinkholes. In Canada, Wood Buffalo National Park , Northwest Territories contains areas of karst sinkholes. Mexico hosts important karst regions in the Yucatán Peninsula and Chiapas . The West of Ireland is home to The Burren , a karst limestone area. The South China Karst in the provinces of Guizhou , Guangxi , and Yunnan provinces
18894-420: The wheel, but it was used solely as a toy. In addition, they used native copper , silver , and gold for metalworking. Archaic inscriptions on rocks and rock walls all over northern Mexico (especially in the state of Nuevo León ) demonstrate an early propensity for counting. Their number system was base 20 and included zero . These early count markings were associated with astronomical events and underscore
19035-667: The word tracing its origins to a Navajo word meaning "ancestor enemies". The Hohokam thrived in the Sonoran desert in what is now the U.S. state of Arizona and the Mexican state of Sonora . The Hohokam were responsible for the construction of a series of irrigation canals that led to the successful establishment of Phoenix, Arizona via the Salt River Project . The Hohokam also established complex settlements such as Snaketown , which served as an important commercial trading center. After 1375 CE, Hohokam society collapsed and
19176-493: Was a Nahua republic and confederation in central Mexico. The Tlaxcalans fiercely resisted Aztec expansion during the Flower Wars ever since the Aztecs expelled them from Lake Texcoco . The Tlaxcalans would later ally with the Spanish conquistadors under Hernán Cortés as an opportunity to liberate them from the Aztecs and managed to successfully conquer the Aztecs with the help of the conquistadors. The Spaniards would reward
19317-416: Was a time of intense flourishing of Maya civilized accomplishments. While the many Maya city-states never achieved political unity on the order of the central Mexican civilizations, they exerted tremendous intellectual influence upon Mexico and Central America. The Maya built some of the most elaborate cities on the continent and made innovations in mathematics, astronomy, and calendrics. The Maya also developed
19458-507: Was achieved on purpose to record the equinoxes, but the idea is highly unlikely: it has been shown that the phenomenon can be observed, without major changes, during several weeks around the equinoxes, making it impossible to determine any date by observing this effect alone. Archeologists have identified in Chichen Itza thirteen ballcourts for playing the Mesoamerican ballgame , but the Great Ball Court about 150 meters (490 ft) to
19599-583: Was adopted in more temperate and sheltered regions, permitting a dramatic rise in population. After the migration or migrations, it was several thousand years before the first complex societies arose, the earliest emerging about seven to eight thousand years ago. As early as 5500 BCE, people in the Lower Mississippi Valley at Monte Sano and other sites in present-day Louisiana , Mississippi , and Florida were building complex earthwork mounds , probably for religious purposes. Beginning in
19740-658: Was in the United States at the time, never returned to Yucatán. He wrote about his research and investigations of the Maya culture in a book People of the Serpent published in 1932. He died in New Jersey in 1935. In 1944 the Mexican Supreme Court ruled that Thompson had broken no laws and returned Chichen Itza to his heirs. The Thompsons sold the hacienda to tourism pioneer Fernando Barbachano Peon. There have been two later expeditions to recover artifacts from
19881-538: Was the construction of complexes of large earthen mounds and grand plazas, continuing the mound-building traditions of earlier cultures. They grew maize and other crops intensively, participated in an extensive trade network, and had a complex stratified society. The Mississippians first appeared around 1000 CE, following and developing out of the less agriculturally intensive and less centralized Woodland period. The largest urban site of these people, Cahokia —located near modern East St. Louis, Illinois —may have reached
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