Portal:Civilizations

A superpower is a sovereign state or supranational union that holds a dominant position characterized by the ability to exert influence and project power on a global scale. This is done through the combined means of economic, military, technological, political, and cultural strength as well as diplomatic and soft power influence. Traditionally, superpowers are preeminent among the great powers. While a great power state is capable of exerting its influence globally, superpowers are states so influential that no significant action can be taken by the global community without first considering the positions of the superpowers on the issue.

In 1944, during World War II, the term was first applied to the British Empire, the Soviet Union, and the United States. During the Cold War, the British Empire dissolved, leaving the United States and the Soviet Union to dominate world affairs. At the end of the Cold War and the dissolution of the Soviet Union in 1991, the United States became the world's sole superpower, a position sometimes referred to as that of a "hyperpower". (Full article...)

Industrial civilization refers to the state of civilization following the Industrial Revolution, characterised by widespread use of powered machines. The transition of an individual region from pre-industrial society into an industrial society is referred to as the process of industrialisation, which may occur in different regions of the world at different times. Individual regions may specialise further as the civilisation continues to advance, resulting in some regions transitioning to a service economy, or information society, or post-industrial society (these are still dependent on industry, but allow individuals to move out of manufacturing jobs). The present era is sometimes referred to as the Information Age . De-industrialization of a region may occur for a range of reasons.

Industrial civilization has allowed a significant growth both in world population, thanks to mechanised agriculture and advances in modern medicine, and in the standard of living. (Full article...)

The Kardashev scale (Russian: шкала Кардашёва, romanized: shkala Kardashyeva) is a method of measuring a civilization's level of technological advancement based on the amount of energy it is capable of harnessing and using. The measure was proposed by Soviet astronomer Nikolai Kardashev in 1964, and was named after him.

Kardashev first outlined his scale in a paper presented at the 1964 conference that communicated findings on BS-29-76, Byurakan Conference in the Armenian SSR, which he initiated, a scientific meeting that reviewed the Soviet radio astronomy space listening program. The paper was titled "Передача информации внеземными цивилизациями" ("Transmission of Information by Extraterrestrial Civilizations"). Starting from a functional definition of civilization, based on the immutability of physical laws and using human civilization as a model for extrapolation, Kardashev's initial model was developed. He proposed a classification of civilizations into three types, based on the axiom of exponential growth:

• A Type I civilization (planetary) is able to access all the energy available on its planet and store it for consumption.
• A Type II civilization (stellar) can directly consume a star's energy, most likely through the use of a Dyson sphere.
• A Type III civilization (galactic) is able to capture all the energy emitted by its galaxy, and every object within it, such as every star, black hole, etc.

(Full article...)

A cradle of civilization is a location and a culture where civilization was developed independently of other civilizations in other locations. A civilization is any complex society characterized by the development of the state, social stratification, urbanization, and symbolic systems of communication beyond signed or spoken languages (namely, writing systems and graphic arts).

Scholars generally acknowledge six cradles of civilization: Mesopotamia, Ancient Egypt, Indus Valley Civilization and Ancient China are believed to be the earliest in Afro-Eurasia, while the Caral–Supe civilization of coastal Peru and the Olmec civilization of Mexico are believed to be the earliest in the Americas. All of the cradles of civilization depended upon agriculture for sustenance (except possibly Caral–Supe which may have depended initially on marine resources). All depended upon farmers producing an agricultural surplus to support the centralized government, political leaders, religious leaders, and public works of the urban centers of the early civilizations. (Full article...)

A planetary civilization or global civilization is a civilization of Type I on the Kardashev scale. This type of civilization is likely to be reliant on renewable energy sources such as stellar power, as well as powerful non-renewable sources such as nuclear fusion. A Type I civilization's energy consumption level is roughly equivalent to the solar insolation on Earth (between 10¹⁶ and 10¹⁷ watts) – around 3 orders of magnitude higher than that of contemporary humanity (around 2×10¹³ as of 2020). (Full article...)

Christianity has been intricately intertwined with the history and formation of Western society. Throughout its long history, the Church has been a major source of social services like schooling and medical care; an inspiration for art, culture and philosophy; and an influential player in politics and religion. In various ways it has sought to affect Western attitudes towards vice and virtue in diverse fields. Festivals like Easter and Christmas are marked as public holidays; the Gregorian Calendar has been adopted internationally as the civil calendar; and the calendar itself is measured from an estimation of the date of Jesus's birth.

The cultural influence of the Church has been vast. Church scholars preserved literacy in Western Europe following the Fall of the Western Roman Empire. During the Middle Ages, the Church rose to replace the Roman Empire as the unifying force in Europe. The medieval cathedrals remain among the most iconic architectural feats produced by Western civilization. Many of Europe's universities were also founded by the church at that time. Many historians state that universities and cathedral schools were a continuation of the interest in learning promoted by monasteries. The university is generally regarded as an institution that has its origin in the Medieval Christian setting, born from Cathedral schools. Many scholars and historians attribute Christianity to having contributed to the rise of the Scientific Revolution. (Full article...)

A middle power is a state that exerts influence and plays a significant role in international relations but is not a superpower or a great power. These countries often possess certain capabilities, such as strong economies, advanced technologies, and diplomatic influence, that allow them to have a voice in global affairs. Middle powers are typically seen as bridge-builders between larger powers, using their diplomatic skills to mediate conflicts and promote cooperation on international issues.

Middle powers play a crucial role in the international system by promoting multilateralism, cooperation, and peaceful resolution of conflicts. They are able to leverage their resources and diplomatic skills to advance their national interests while also contributing to global stability and prosperity. As such, middle powers are an important and often overlooked factor in the complex web of international relations. (Full article...)

Ecological civilization is the hypothetical concept that describes the alleged final goal of social and environmental reform within a given society. It implies that the changes required in response to global climate disruption and social injustices are so extensive as to require another form of human civilization, one based on ecological principles. It has become one of the tenets of the ideology of the Chinese Communist Party, often referred to as Xi Jinping Thought on Ecological Civilization. (Full article...)

The planetary phase of civilization is a term created by the Global Scenario Group (GSG) to describe the contemporary era in which increasing global interdependence and risks are binding the world into a unitary socio-ecological system. Characteristics of this phase include economic globalization, biospheric destabilization, mass migration, new global institutions, the Internet, new forms of transboundary conflict, and shifts in culture and consciousness. (Full article...)

A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power influence, which may cause middle or small powers to consider the great powers' opinions before taking actions of their own. International relations theorists have posited that great power status can be characterized into power capabilities, spatial aspects, and status dimensions.

While some nations are widely considered to be great powers, there is considerable debate on the exact criteria for great power status. Historically, great powers have been formally recognized as members of organizations such as the Congress of Vienna of 1814–1815 or the United Nations Security Council, of which the permanent members are China, France, Russia, the United Kingdom, and the United States. The United Nations Security Council, NATO Quint, the G7, BRICS, and the Contact Group have all been described as great power concerts. (Full article...)

The extensive trade networks of the Ancient Maya contributed largely to the success of their civilization spanning three millennia. Maya royal control and the wide distribution of foreign and domestic commodities for both population sustenance and social affluence are hallmarks of the Maya visible throughout much of the iconography found in the archaeological record. In particular, moderately long-distance trade of foreign commodities from the Caribbean and Gulf Coasts provided the larger inland Maya cities with the resources they needed to sustain settled population levels in the several thousands. Though the ruling class essentially controlled the trade economy, a middle merchant class supervised import and export from cities and trade ports. Not much is known of the Maya merchant class; however, merchants of royal lineage are sometimes represented in the iconography. Notably, a canoe paddle often accompanies the royal merchant depictions, signifying their association with marine resources.

Water lilies are also a recognizable feature of Maya iconography, appearing on ceramics and murals in landlocked cities like Palenque where the lilies cannot grow, further indicating the important political symbolism of water connections. The dugout style canoes of the Maya and other small watercraft are also represented in various codices, sometimes ferrying royal figures or deities. The rich tradition of maritime trade has continued into the modern era, exemplified by the resource exploitation of the coastal lagoons and cay locations along the Caribbean coast of Mexico, Belize, Guatemala, and Honduras. Eventually, the intensification of maritime trade reliance aided in the collapse of interior Maya power regimes, shifting political influence to coastal polities such as Uxmal and Chichen Itza in the Terminal Classic. A seaborne trade economy would continue to dominate the Maya civilization until the period of European contact. (Full article...)

Islamic civilization may refer to:

• Islamic Golden Age
• Reception of Islam in Early Modern Europe
• Muslim world
• Caliphate
• Islamic culture
• Ummah

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The terms African civilizations, also classical African civilizations, or African empires are terms that generally refer to the various pre-colonial African kingdoms. The civilizations usually include Egypt, Carthage, Axum, Numidia, and Nubia, but may also be extended to the prehistoric Land of Punt and others: Kingdom of Dagbon, the Empire of Ashanti, Kingdom of Kongo, Empire of Mali, Kingdom of Zimbabwe, Songhai Empire, the Garamantes the Empire of Ghana, Bono state, Harla Kingdom, Kingdom of Benin, Ife Empire and Oyo Empire. (Full article...)

Magan (also Majan) was an ancient region in what is now modern day Oman and United Arab Emirates. It was referred to in Sumerian cuneiform texts of around 2300 BCE and existed until 550 BCE as a source of copper and diorite for Mesopotamia. As discussed by The Archeology Fund founded by Juris Zarins, "The Sumerian cities of southern Mesopotamia were closely linked to the Persian Gulf. Archaeologists and historians have linked sites in Saudi Arabia, Bahrain, and Qatar to the Sumerian geographical term of Dilmun. Oman, was most likely the Sumerian Magan". (Full article...)

The Andean civilizations were South American complex societies of many indigenous people. They stretched down the spine of the Andes for 4,000 km (2,500 miles) from southern Colombia, to Ecuador and Peru, including the deserts of coastal Peru, to north Chile and northwest Argentina. Archaeologists believe that Andean civilizations first developed on the narrow coastal plain of the Pacific Ocean. The Caral or Norte Chico civilization of coastal Peru is the oldest known civilization in the Americas, dating back to 3500 BCE. Andean civilizations are one of at least five civilizations in the world deemed by scholars to be "pristine." The concept of a "pristine" civilization refers to a civilization that has developed independently of external influences and is not a derivative of other civilizations.

Despite the severe environmental challenges of high mountains and hyper-arid desert, the Andean civilizations domesticated a wide variety of crops, some of which, such as potatoes, peppers, peanuts, manioc, chocolate, and coca, became of worldwide importance. The Andean civilizations were noteworthy for monumental architecture, an extensive road system, textile weaving, and many unique characteristics of the societies they created. (Full article...)

Economy is conventionally defined as a function for production and distribution of goods and services by multiple agents within a society and/or geographical place An economy is hierarchical, made up of individuals that aggregate to make larger organizations such as governments and gives value to goods and services. The Maya economy had no universal form of trade exchange other than resources and services that could be provided among groups such as cacao beans and coppheological evidence to study the trade of perishable goods, it is noteworthy to explore the trade networks of artifacts and other luxury items that were likely transported together.

While subsistence agriculture played a central role in daily life, the Maya had a mechanism for economic exchange between settlements, which was capable of supporting specialists and a system of merchants through trade routes. Maya specialist Joanne Pillsbury states that "access to imported goods is perhaps the most recoverable aspect of prestige and leadership in ancient states." The power of Maya rulers not only depended on their ability to control resources, but also in managing the production and distribution of status goods as well as (non-local) commodities like salt. Furthermore, Maya laborers were subject to a labor tax to build palaces, temples and public works. A ruler successful in war was able to control more laborers and exact tribute on defeated enemies, further increasing their economic might. (Full article...)

The Manteño-Huancavilca culture (Spanish: Los Manteños) were one of the last pre-Columbian cultures in modern-day Ecuador, active from 850 to 1600 CE (1150–400 BP). It encompasses the area of the earlier Valdivia culture. (Full article...)

Women in Aztec civilization shared some equal opportunities. Aztec civilization saw the rise of a military culture that was closed off to women and made their role more prescribed to domestic and reproductive labor and less equal. The status of Aztec women in society was further altered in the 16th century, when Spanish conquest forced European norms onto the indigenous culture. However, many pre-Columbian norms survived and their legacy still remains. (Full article...)

The Huastec civilization (sometimes spelled Huaxtec or Wastek) was a pre-Columbian civilization of Mesoamerica, occupying a territory on the Gulf coast of Mexico that included the northern portion of Veracruz state, and neighbouring regions of the states of Hidalgo, Querétaro, San Luis Potosí, and Tamaulipas. The Huastec people were an early offshoot of the Maya peoples that migrated northwards.

Surviving remains from the Huastec civilization include several large archaeological sites, a well-preserved temple, and a large amount of stone sculpture. By the Late Postclassic (c. AD 1200–1521), the Huastecs had developed metallurgy and were producing copper alloys. The Aztec Empire conquered the Huastec region around the 15th century, and probably demanded tribute payments. (Full article...)

Yangtze civilization (simplified Chinese: 长江文明; traditional Chinese: 長江文明) is a generic name for various ancient Neolithic and Bronze Age cultures from the Yangtze basin in China, a contemporary civilization by the neighboring Yellow River civilization. (Full article...)

File:Bandera zapoteca.png

The Zapotec civilization (Be'ena'a (Zapotec) "The People that came from the clouds"; c. 700 BC – AD 1521) is an indigenous pre-Columbian civilization that flourished in the Valley of Oaxaca in Mesoamerica. Archaeological evidence shows that their culture originated at least 2,500 years ago. The Zapotec archaeological site at the ancient city of Monte Albán has monumental buildings, ball courts, tombs and grave goods, including finely worked gold jewelry. Monte Albán was one of the first major cities in Mesoamerica. It was the center of a Zapotec state that dominated much of the territory which today is known as the Mexican state of Oaxaca. The Zapotec peoples are their modern descendants. (Full article...)

Anatomically modern humans first arrived on the Indian subcontinent between 73,000 and 55,000 years ago. The earliest known human remains in South Asia date to 30,000 years ago. Sedentariness began in South Asia around 7000 BCE; by 4500 BCE, settled life had spread, and gradually evolved into the Indus Valley Civilisation, one of three early cradles of civilisation in the Old World, which flourished between 2500 BCE and 1900 BCE in present-day Pakistan and north-western India. Early in the second millennium BCE, persistent drought caused the population of the Indus Valley to scatter from large urban centres to villages. Around 1800 - 1500 BCE the Indo-Aryan tribes moved into the north western region of india, modern day Punjab from Central Asia in several waves of migration. The Vedic Period of the Vedic people in northern India (1500–500 BCE) was marked by the composition of their extensive collections of hymns (Vedas). The social structure was loosely stratified via the varna system, incorporated into the highly evolved present-day Jāti system. The pastoral and nomadic Indo-Aryans spread from the Punjab into the Gangetic plain. Around 600 BCE a second urbanization occurred resulting in a new interregional culture; then, smaller janapadas (realms) were consolidated into mahajanapadas (great states). This period saw the rise of new ascetic movements and religious concepts, including the rise of Jainism and Buddhism. The latter was synthesized with the preexisting religious cultures of the subcontinent, giving rise to Hinduism.

Chandragupta Maurya overthrew the Nanda Empire and established the first great empire in ancient India, the Maurya Empire. India's Mauryan king Ashoka is widely recognised for the violent Kalinga War and his historical acceptance of Buddhism and his attempts to spread nonviolence and peace across his empire. This period marks the rapid dissemination of Śramaṇic religions. (Full article...)

Judaism as a Civilization: Toward a Reconstruction of American-Jewish Life is a 1934 work on Judaism and American Jewish life by Rabbi Mordecai M. Kaplan, the founder of Reconstructionist Judaism.

The book is Kaplan's most notable work and has influenced a number of American Jewish thinkers. Kaplan's work centers around the concept that Judaism ought not to be defined as the religion of the Jews, but the sum of Jewish religion, culture, language, literature and social organization. (Full article...)

Aegean civilization is a general term for the Bronze Age civilizations of Greece around the Aegean Sea. There are three distinct but communicating and interacting geographic regions covered by this term: Crete, the Cyclades and the Greek mainland. Crete is associated with the Minoan civilization from the Early Bronze Age. The Cycladic civilization converges with the mainland during the Early Helladic ("Minyan") period and with Crete in the Middle Minoan period. From c. 1450 BC (Late Helladic, Late Minoan), the Greek Mycenaean civilization spreads to Crete, probably by military conquest. The earlier Aegean farming populations of Neolithic Greece brought agriculture westward into Europe before 5000 BC. (Full article...)

The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization was traditionally thought to have first emerged in the Yellow River or Huang He valley, which along with the Yangtze basin constitutes the geographic core of the Chinese cultural sphere. However, current views have considered the origin to be a simultaneous duality of both the Yellow River and the Yangtze. China maintains a rich diversity of ethnic and linguistic people groups. The traditional lens for viewing Chinese history is the dynastic cycle: imperial dynasties rise and fall, and are ascribed certain achievements. This lens also tends to assume Chinese civilization can be traced as an unbroken thread many thousands of years into the past, making it one of the cradles of civilization. At various times, states representative of a dominant Chinese culture have directly controlled areas stretching as far west as the Tian Shan, the Tarim Basin, and the Himalayas, as far north as the Sayan Mountains, and as far south as the delta of the Red River.

The Neolithic period saw increasingly complex polities begin to emerge along the Yellow and Yangtze rivers. The Erlitou culture in the central plains of China is sometimes identified with the Xia dynasty (3rd millennium BC) of traditional Chinese historiography. The earliest surviving written Chinese dates to roughly 1250 BC, consisting of divinations inscribed on oracle bones in the Shang Dynasty, the oldest confirmed dynasty due to such relics in 1899. Chinese bronze inscriptions, ritual texts dedicated to ancestors, form another large corpus of early Chinese writing. The earliest strata of received literature in Chinese include poetry, divination, and records of official speeches. China is believed to be one of a very few loci of independent invention of writing, and the earliest surviving records display an already-mature written language. The culture remembered by the earliest extant literature is that of the Zhou dynasty (c. 1046 – 256 BC), China's Axial Age, during which the Mandate of Heaven was introduced, and foundations laid for philosophies such as Confucianism, Taoism, Legalism, and Wuxing. (Full article...)

The Nuragic civilization, also known as the Nuragic culture, formed in the Mediterranean island of Sardinia, Italy in the Bronze Age. According to the traditional theory put forward by Giovanni Lilliu in 1966, it developed after multiple migrations from the West of people related to the Beaker culture who conquered and disrupted the local Copper Age cultures; other scholars instead hypothesize an autochthonous origin. It lasted from the 18th century BC (Middle Bronze Age), up to the Iron Age or until the Roman colonization in 238 BC. Others date the culture as lasting at least until the 2nd century AD, and in some areas, namely the Barbagia, to the 6th century AD — or possibly even to the 11th century AD,
although it must be remarked that the construction of new nuraghi had already stopped by the 12th-11th century BC, during the Final Bronze Age.

It was contemporary with, among others, the Mycenaean civilization in Greece, the Apennine and Terramare cultures of the Italian Peninsula, the Thapsos culture of Sicily, and the final phase of the El Argar culture in the Iberian Peninsula. (Full article...)

Ancient Egypt was a cradle of civilization concentrated along the lower reaches of the Nile River in the eastern corner of North Africa. It emerged from prehistoric Egypt around 3150 BC (according to conventional Egyptian chronology), when Upper and Lower Egypt were united by Menes, who is believed by the majority of Egyptologists to have been the same person as Narmer. The history of ancient Egypt unfolded as a series of stable kingdoms interspersed by the "Intermediate Periods" of relative instability. These stable kingdoms existed in one of three periods: the Old Kingdom of the Early Bronze Age; the Middle Kingdom of the Middle Bronze Age; or the New Kingdom of the Late Bronze Age.

The pinnacle of ancient Egyptian power was achieved during the New Kingdom, which extended its rule to much of Nubia and a considerable portion of the Levant. After this period, Egypt entered an era of slow decline. Over the course of its history, it was invaded or conquered by a number of foreign civilizations, including the Hyksos, the Kushites, the Assyrians, the Persians, and the Greeks and then the Romans. The end of ancient Egypt is variously defined as occurring with the end of the Late Period during the Wars of Alexander the Great in 332 BC or with the end of the Greek-ruled Ptolemaic Kingdom during the Roman conquest of Egypt in 30 BC. In AD 642, the Arab conquest of Egypt brought an end to the region's millennium-long Greco-Roman period. (Full article...)

Trade was a crucial factor in maintaining Maya cities.

Activity consisted mainly of foods like fish, squash, yams, corn, honey, beans, turkey, vegetables, salt, chocolate drinks; raw materials such as limestone, marble, jade, wood, copper, and gold; and manufactured goods such as paper, books, furniture, jewelry, clothing, carvings, toys, weapons, and luxury goods. The Maya also had an important services sector, through which mathematicians, farming consultants, artisans, architects, astronomers, scribes and artists would work. Some of the richer merchants also sold weapons, gold and other valuables. Specialized craftsmen created luxury items and devices to overcome specific problems, usually by royal decree. (Full article...)

Western civilization describes the development of human civilization beginning in Ancient Greece, transforming in Ancient Rome, and spreading throughout Europe by evolving into Medieval Western Christendom.

The civilizations of Classical Greece (Hellenic) and Roman Empire (Latin) as well as Ancient Israel (Hebraism) and early Christendom are considered seminal periods in Western history. From Ancient Greece sprang belief in democracy, and the pursuit of intellectual inquiry into such subjects as truth and beauty; from Rome came lessons in government administration, martial organization, engineering and law; and from Ancient Christianity with its ideals of the brotherhood of humanity. Strong cultural contributions also emerged from the pagan Germanic, Celtic, Finnic and Nordic peoples of pre-Christian Europe. Following the 5th-century "Fall of Rome", Europe entered the Middle Ages, during which period the Catholic Church filled the power vacuum left in the West by the fallen Roman Empire, while the Eastern Roman Empire (Byzantine Empire) endured for centuries. (Full article...)

The Maya civilization (/ˈmaɪə/) was a Mesoamerican civilization that existed from antiquity to the early modern period. It is known by its ancient temples and glyphs (script). The Maya script is the most sophisticated and highly developed writing system in the pre-Columbian Americas. The civilization is also noted for its art, architecture, mathematics, calendar, and astronomical system.

The Maya civilization developed in the Maya Region, an area that today comprises southeastern Mexico, all of Guatemala and Belize, and the western portions of Honduras and El Salvador. It includes the northern lowlands of the Yucatán Peninsula and the Guatemalan Highlands of the Sierra Madre, the Mexican state of Chiapas, southern Guatemala, El Salvador, and the southern lowlands of the Pacific littoral plain. Today, their descendants, known collectively as the Maya, number well over 6 million individuals, speak more than twenty-eight surviving Mayan languages, and reside in nearly the same area as their ancestors. (Full article...)

Western civilization traces its roots back to Europe and the Mediterranean. It began in ancient Greece, transformed in ancient Rome, and evolved into medieval Western Christendom before experiencing such seminal developmental episodes as the development of Scholasticism, the Renaissance, the Reformation, the Scientific Revolution, the Enlightenment, the Industrial Revolution, and the development of liberal democracy. The civilizations of classical Greece and Rome are considered seminal periods in Western history. Major cultural contributions also came from the Christianized Germanic peoples, such as the Longobards, the Franks, the Goths, and the Burgundians. Charlemagne founded the Carolingian Empire and he is referred to as the "Father of Europe". Contributions also emerged from pagan peoples of pre-Christian Europe, such as the Celts and Germanic pagans as well as some significant religious contributions derived from Judaism and Hellenistic Judaism stemming back to Second Temple Judea, Galilee, and the early Jewish diaspora; and some other Middle Eastern influences. Western Christianity has played a prominent role in the shaping of Western civilization, which throughout most of its history, has been nearly equivalent to Christian culture. (There were Christians outside of the West, such as China, India, Russia, Byzantium and the Middle East). Western civilization has spread to produce the dominant cultures of modern Americas and Oceania, and has had immense global influence in recent centuries in many ways.

Following the 5th century Fall of Rome, Europe entered the Middle Ages, during which period the Catholic Church filled the power vacuum left in the West by the fall of the Western Roman Empire, while the Eastern Roman Empire (or Byzantine Empire) endured in the East for centuries, becoming a Hellenic Eastern contrast to the Latin West. By the 12th century, Western Europe was experiencing a flowering of art and learning, propelled by the construction of cathedrals, the establishment of medieval universities, and greater contact with the medieval Islamic world via Al-Andalus and Sicily, from where Arabic texts on science and philosophy were translated into Latin. Christian unity was shattered by the Reformation from the 16th century. A merchant class grew out of city states, initially in the Italian peninsula (see Italian city-states), and Europe experienced the Renaissance from the 14th to the 17th century, heralding an age of technological and artistic advance and ushering in the Age of Discovery which saw the rise of such global European empires as those of Portugal and Spain. (Full article...)

Yellow River civilization, Huanghe civilization or Huanghe Valley civilization (Chinese: 黃河文明), Hwan‐huou civilization is an ancient Chinese civilization that prospered in the middle and lower basin of the Yellow River. Agriculture was started in the flood plain of the Yellow River, and before long, through flood control and the irrigation of the Yellow River, cities were developed and political power found reinforcement. One of the "four major civilizations of the ancient world", it is often included in textbooks of East Asian history, but the idea of including only the Yellow River civilization as one of the four biggest ancient civilizations has become outdated as a result of the discovery of other early cultures in China, such as the Yangtze and Liao civilizations. The area saw the Yangshao and Longshan cultures of the Neolithic era and developed into the bronze ware culture of the Shang and Zhou dynasties. (Full article...)

The Aztecs (/ˈæztɛks/ AZ-teks) were a Mesoamerican civilization that flourished in central Mexico from 1300 to 1521. The Aztec people included different ethnic groups of central Mexico, particularly those groups who spoke the Nahuatl language. Aztec culture was organized into city-states (altepetl), some of which joined to form alliances, political confederations, or empires. The Aztec Empire was a confederation of three city-states established in 1427: Tenochtitlan (the capital city of the Mexica or Tenochca), Tetzcoco, and Tlacopan, previously part of the Tepanec empire, whose dominant power was Azcapotzalco. Although the term Aztecs is often narrowly restricted to the Mexica of Tenochtitlan, it is also broadly used to refer to Nahua polities or peoples of central Mexico in the prehispanic era, as well as the Spanish colonial era (1521–1821).

Most ethnic groups of central Mexico in the post-classic period shared essential cultural traits of Mesoamerica. The culture of central Mexico includes maize cultivation, the social division between nobility (pipiltin) and commoners (macehualtin), a pantheon, and the calendric system. Particular to the Mexica of Tenochtitlan was the patron god Huitzilopochtli, twin pyramids, and the ceramic styles known as Aztec I to IV. The Mexica were late-comers to the Valley of Mexico, and founded the city-state of Tenochtitlan on unpromising islets in Lake Texcoco, later becoming the dominant power of the Aztec Triple Alliance or Aztec Empire which conquered other city-states throughout Mesoamerica. It originated in 1427 as an alliance between the city-states Tenochtitlan, Texcoco, and Tlacopan to defeat the Tepanec state of Azcapotzalco, which had previously dominated the Basin of Mexico. Soon Texcoco and Tlacopan were relegated to junior partnership in the alliance, with Tenochtitlan the dominant power. The empire extended its reach by a combination of trade and military conquest. It was never a true territorial empire controlling territory by large military garrisons in conquered provinces but rather dominated its client city-states primarily by installing friendly rulers in conquered territories, constructing marriage alliances between the ruling dynasties, and extending an imperial ideology to its client city-states. Client city-states paid taxes, not tribute to the Aztec emperor, the Huey Tlatoani, in an economic strategy limiting communication and trade between outlying polities, making them dependent on the imperial center for the acquisition of luxury goods. The political clout of the empire reached far south into Mesoamerica conquering polities as far south as Chiapas and Guatemala and spanning Mesoamerica from the Pacific to the Atlantic oceans. (Full article...)

A River valley civilization is an agricultural civilization that is situated beside a river. Civilization develops from the river as it gives the inhabitants a reliable source of water for drinking and agriculture. The river also supports their livelihood through fishing, fertile soil from annual flooding, and ease of transportation.

Overview (Full article...)

In modern historiography, ancient Rome is the Roman civilisation from the founding of the Italian city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–509 BC), the Roman Republic (509‍–‍27 BC), and the Roman Empire (27 BC – 476 AD) until the fall of the western empire.

Ancient Rome began as an Italic settlement, traditionally dated to 753 BC, beside the River Tiber in the Italian Peninsula. The settlement grew into the city and polity of Rome, and came to control its neighbours through a combination of treaties and military strength. It eventually controlled the Italian Peninsula, assimilating the Greek culture of southern Italy (Magna Graecia) and the Etruscan culture, and then became the dominant power in the Mediterranean region and parts of Europe. At its height it controlled the North African coast, Egypt, Southern Europe, and most of Western Europe, the Balkans, Crimea, and much of the Middle East, including Anatolia, the Levant, and parts of Mesopotamia and Arabia. That empire was among the largest empires in the ancient world, covering around 5 million square kilometres (1.9 million square miles) in AD 117, with an estimated 50 to 90 million inhabitants, roughly 20% of the world's population at the time. The Roman state evolved from an elective monarchy to a classical republic and then to an increasingly autocratic military dictatorship during the Empire. (Full article...)