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Expanding Networks of Exchange and Encounter   

2010-02-05 06:45:59|  分类: 默认分类 |  标签: |举报 |字号 订阅

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This Big Era and the Three Essential Questions

In Big Era Three, humans in several parts of the world began to produce food, adopt new forms of social organization, and interact more intensively with one another over longer distances than in any earlier times. In Big Era Four those patterns continued, though at a faster pace. World population continued to increase in the first millennium BCE, though it leveled off in the early centuries CE. More cities appeared. States, which first emerged in Big Era Three as a way of organizing large populations under a single governing authority, now appeared in new forms that were bigger, more complex, and more efficient at collecting taxes from the population.

Interregional systems of communication allowed goods, technologies, and ideas to move, sometimes thousands of miles. Interlocking networks of roads, trails, and sea lanes connected almost all parts of Afroeurasia and, in the Americas, extensive areas of Mesoamerica and the Andean mountain spine of South America. Among the ideas transmitted along these routes were new belief systems, which invited peoples of differing languages and cultural traditions to share common standards of morality and trust.

Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

We might argue that compared to today, when humans are expending huge amounts of energy to shape the physical and natural earth to their own purposes, Big Era Four was not a period of drastic environmental change. That, however, is a relative matter. If we compare that era to the three earlier ones, it is clear that humans were extracting energy from nature and from the earth’s outer crust at an accelerating pace. This intervention produced rising agricultural productivity in the world as a whole and, for some, a higher standard of living.

Recall that in the essay on Big Era Two, we introduced the concepts of extensification and intensification. In Big Era Four, intensification involved human groups introducing both farming and pastoral nomadism in parts of the world where only foragers, if any humans at all, had previously lived. With the establishment of farming or herding in those regions, the size, density, and complexity of social groups grew significantly. Those places included southern Africa, the grassy steppes of northeastern Eurasia, the Yangzi River valley in China, parts of Oceania (the Pacific islands), Mesoamerica, and Andean South America.

Technology. New tools and techniques that made those developments possible included improved hybrids of food crops and in Afroeurasia more extensive exploitation of horses and camels as work animals. Perhaps the single most important invention of the era was the technology of iron production. Beginning late in the second millennium BCE, people in both Southwest Asia and East Africa, independently of each other, acquired the knowledge of how to smelt iron and work it into useful objects. This technology rapidly spread across most of Afroeurasia.

Consequently, farmers wielding iron axes, hoes, spades, and plows opened millions of acres of virgin land. City artisans used iron hammers, chisels, and saws to erect great buildings of wood and stone. And monarchs increasingly armed soldiers with iron weapons and armor. In other respects, we cannot really argue that Big Era Four was a time of great technological change in the world as a whole. Many of the most fundamental inventions, such as the wheel, the technology of pottery-making, or the horse harness, had already appeared. And basic inventions did not necessarily spread worldwide. Iron metallurgy, for example, did not reach the Americas, Australia, or Oceania.

Population growth. One fundamental development closely linked to the expansion of agriculture was population growth. Between 1000 BCE and 1 CE, world population appears to have risen from about 120,000,000 to 250,000,000. The rate of growth also went up. Between 3,000 and 1,000 BCE, it took about 1,600 years for world populations to double. Between 1,000 BCE and 1 CE the doubling time was less than 1,000 years.

One cause of human biological success in the first millennium BCE may have been that in regions where people regularly interacted with one another, they slowly built up shared immunities to infectious diseases. This would especially have happened in densely populated regions like Southwest Asia, northern India, or northern China. Stronger natural immunities reduced mortality from recurring epidemics, permitting populations to grow at a faster rate. However, if some new infectious malady entered a region from afar, a severe epidemic might break out and populations take a plunge.

Environmental impact: the fate of forests. As populations grew, so did their impact on the environment. Though the pace of deforestation in Big Era Four may have been minor compared to the twentieth century, it appears to have greatly accelerated compared to earlier times. Clearing forest cover for fuels, farming, or grazing meant that more people could live on a given area of land. Over the long run, however, forest cutting produced soil erosion, chronic shortages of wood fuel, periodic famines, and extinction of some local animal and plant species. Deforestation and the burning of trees, as well as wet rice farming, may even have begun to alter global climate.

We have sound archaeological evidence that in Big Era Four farmers cut or burned forests on a substantial scale in the Mediterranean basin, western Europe, East Africa, the Ganges River valley, China, and other regions. In Mesoamerica and the Andes Mountains, societies had neither iron tools nor large work animals until much later in history. In both those regions, however, land clearing proceeded steadily because those societies learned to deploy human muscle power on a large scale and very efficiently.

Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

The doubling of world numbers in Big Era Four, coupled with increasing density of farming populations, meant that in many places humans had no other choice than to experiment with new ways of organizing their social, economic, and cultural relations. For one thing, many more humans lived in cities at the end of this era than at the beginning.

This does not mean that anything close to a majority of people inhabited cities or that urban growth was steady and uninterrupted. Urban populations rose and fell. In fact, cities appeared and disappeared, in connection with regional or local changes in agricultural production, long-distance trade, infectious disease environments, political conditions, and other factors. The table below tells us something about the general patterns of global urbanization between 1200 BCE and 500 CE?1

Year Number of largest cities Size of largest cities Total population of largest cities

BCE 1200

16

24,000-50,000

499,000

650

20

30,000-120,000

894,000

430

51

30,000-200,000

2,877,000

CE 100

75

30,000-450,000

5,181,000

500

47

40,000-400,000

3,892,000

We can see here that urbanization rose steadily up to the second century CE, then declined in the following 400 years. We can definitely link the upswing to the appearance of several large states and empires, all of which accumulated sizable agricultural, mineral, and commercial wealth. The downswing after the second century CE may be partly connected to pandemic disease outbreaks, the decline of large empires, and extended economic recessions in the major agrarian regions.

The multiplying of cities. In Afroeurasia, cities grew and multiplied partly because they developed increasingly strong commercial ties with one another, sometimes across long distances. About 100 CE, the world’s two biggest cities were almost certainly Rome, with a population nearing 1,000,000, and Luoyang in China’s Han empire. The urban downswing that occurred from the third century CE was certainly related to the decline of the Han and Roman empires.

Most cities of Big Era Four were multifunctional, serving as centers of government, religion, trade, manufacturing, education, and artistic display. In some cities, such as Rome or Alexandria (in Egypt), all these functions operated simultaneously. Other cities had more specialized purposes, for example, towns of the Mediterranean coast or Inner Eurasia, which functioned chiefly to transship goods along routes of trade.

In the Americas, early urban development was centered in Mesoamerica—the valley of Mexico, the Oaxaca valley, the Yucatan Peninsula, and Guatemala—and in South America’s northern Andes Mountains. The earliest city we know of in Mesoamerica emerged sometime after 1700 BCE in the tropical lowlands that border the Gulf of Mexico. This town developed in association with the early Olmec (Olmeca) state, a polity probably ruled by an elite class of land-controlling aristocrats. By 500 CE, the city of Teotihuacán in the Valley of Mexico may have had a population of about 100,000. In South America, archaeologists have dated the earliest ceremonial centers, complete with pyramids, plazas, and residential neighborhoods, to about 3000 BCE. These sites, located north of Lima, Peru, preceded the pyramids of Giza in Egypt by about 400 years. The contours of an elite-governed complex society come into clearer view at the ruins of Chavín de Huántar, a ritual center that appeared around 800 BCE in the Andean highlands of northern Peru.

Giant empires. States of unprecedented size arose in Big Era Four partly because of new technologies that permitted rulers to extend their systems of central command farther and farther away from their capitals. One of these advances was the perfecting of horse riding. All across Afroeurasia armed cavalry, which could operate on almost any terrain, replaced chariots as an instrument of military conquest and control. Soldiers, as well as state messengers and envoys, could transmit political orders and vital news by horseback faster than any other way. Other innovations that contributed to imperial growth were advanced road construction (the Persians and Romans), canal building (the Chinese), and the emergence of the dromedary camel as the principal transport animal in arid lands from Africa to northwest India.

Below is a table of the three biggest empires of the 1000 BCE to 500 CE period. Their land area is compared to that of the continental United States.2

State

Approximate year

Approximate size in square miles

Han empire

50 B.C.E.

2,509,000

Achaemenid Persian empire

500 B.C.E.

2,123,000

Roman empire

100 C.E.

1,698,400

Continental United States

Present

3,021,296

These ancient states were empires not only because they were big but also because a single government, and an elite class of particular origin (Han Chinese, Indo-Iranian-speaking Persians, Latin-speaking Romans), ruled over peoples of diverse linguistic, ethnic, and religious identities.

In Big Era Four, the majority of the world’s people probably did not live within the frontiers of empires. Some lived in city-states, which were relatively small sovereign territories centered on a single city. Greek and Phoenician city-states of the Mediterranean are obvious examples. Many other people lived under no state authority but in societies organized in kinship groups.

Nevertheless, a sweeping view of Afroeurasia about 100 CE reveals a nearly continuous chain of states, most of them gigantic, extending from the Atlantic to the Pacific. All these states enjoyed extended periods of political order and economic prosperity, and those conditions in turn stimulated long-distance exchanges of products and ideas, not just within states but between one and another.Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

The system of writing that emerged in Afroeurasia in Big Era Three greatly enhanced the speed and range of collective learning among humans. Those writing systems, however, were logographic. That is, they employed signs, or characters, that represented meanings. Therefore, they required thousands of separate signs (written characters), each having a specific meaning. This kind of writing system had the advantage of allowing people to express meanings in very precise, subtle ways.

The cuneiform writing system used in ancient Mesopotamia and shown on this clay tablet combined logographic and phonetic elements. The tablet dates to about 2040 BCE.

Kirkor Minassian collection

in the Library of Congress.

Wikimedia Commons

Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

The new development in Big Era Four, however, was the appearance of the earliest alphabetic writing systems. The signs used in them represented, for the most part, sounds of speech, not meanings. Meanings may be expressed in millions of ways. But the number of sounds humans can make with their lips and tongues is drastically limited. Alphabetic systems, therefore, relied on a small number of signs (for example, 26 in the English alphabet, 28 in the Arabic one). Nevertheless, these signs could be arranged in countless ways to represent the nuances of human thought.

The earliest alphabetic system that we know of appeared in Southwest Asia near the end of the second millennium BCE. In the following centuries variations of that system spread from the Mediterranean basin to India. People could master alphabetic systems faster and easier than logographic ones. Therefore literacy spread rapidly in Big Era Four, though especially among scholars, priests, officials, and merchants, not ordinary farmers and workers. Nor did alphabetic systems completely replace logographic ones. The Chinese character-based system is the leading case of modern logographic writing.

The Arabic alphabet of 28 letters is written from right to left.

Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

 

Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

This ninth century CE Latin script, called Carolingian Minuscule, reads, “Our Father who are in Heaven.”

Big religions. Another development of Big Era Four, and one related to the spread of writing, was the appearance of several belief systems that embraced people of differing languages and cultural traditions, what we often call “world religions.” The great majority of people in that era practiced local religions, that is, systems that centered on local gods and goddesses, sacred places in nature, astrology, magic, and pronouncements of shamans—individuals who mediated between the natural and supernatural worlds. In large states and empires, religious life tended to be diverse, though rulers could seldom resist encouraging their subjects to think of them as individuals with supernatural powers or even as divine beings. For example, when the Roman state made the transition from a republic to a sprawling autocratic empire, its leaders were transformed from ordinary mortals into gods.

Since people do not appear to have lacked for religious life on a local scale from very early times, why did several large-scale belief systems emerge in Big Era Four? In fact, why did all the major world religions appear in that era, with the exception of Islam? One possibility is that by about the middle of the first millennium BCE, Afroeurasia reached a level of population and an intensity of commercial and cultural interchange that required larger systems of morality and shared belief. The new religious systems provided foundations of cultural communication, moral expectation, and personal trust among people who were meeting, sharing ideas, and doing business with one another far beyond their local neighborhoods. The new belief systems, however, were by no means all the same. Each one offered distinctive answers to persistent questions about the human condition and different ways of approaching worship, ritual, and communal life. The table below provides some basic information about new religions that appeared in Big Era Four.

Belief system

Time of appearance

Homeland

Buddhism

5th century B.C.E.

Northern India

Christianity

1st century C.E.

Southwest Asia

Confucianism

5th century B.C.E.

Northern China

Daoism (Taoism)

5th century B.C.E.

Northern China

Hinduism

early 1st millennium B.C.E.

Northern India

Judaism

early 1st millennium B.C.E.

Southwest Asia

Buddhism, Christianity, Hinduism, Judaism, and Daoism all offered paths to self-transformation and to eternal salvation in one form or another. Christianity and Judaism were the most firmly monotheistic, proclaiming one omnipotent and omniscient god. Hinduism made room for numerous, powerful gods and goddesses. Buddhism and Daoism also accepted the existence of multiple divine beings in various forms and incarnations. Like Christianity and Judaism, however, Buddhism, Daoism, and Hinduism envisioned a unitary, all-encompassing cosmic reality.

Buddhism and Christianity emphasized their universalism and appeal to all humans, and both spread widely across ethnic and linguistic frontiers. Judaism remained closely identified with the Hebrew people and their descendants, though by the end of Big Era Four a diaspora of Jewish communities extended nearly across Afroeurasia. All six systems taught that human relations should be guided by kindness, selflessness, and decency. Confucianism, which some scholars characterize as an ethical system rather than a religion, particularly emphasized public moral behavior, good government, and social responsibility.

These six systems may of course be compared and contrasted in numerous other ways. In terms of general beliefs and practices, none can be set rigidly apart from all the others. Also, within each tradition, significant variations developed depending on local cultural tendencies and social environments. For example, in the Christian tradition, several different “churches,” each with distinctive beliefs and practices, emerged during the first or early second millennium CE. These included the Eastern (Greek) Orthodox, Roman Catholic, Arian, Nestorian, and Ethiopian churches. In Afroeurasia the only major belief system that did not appear in Big Era Four was Islam, which came on the scene in the seventh century CE.

Philosophy. All these belief systems had philosophical aspects in the sense that they encouraged investigations into the structure and meaning of the physical and natural universe. None of them was incompatible with types of inquiry and speculation that we associate with the beginnings of science. In the Aegean Sea region, for example, Greek-speaking scholars, whose religion in the first millennium BCE embraced a large household of deities, developed a method of scientific and moral questioning known as natural philosophy. According to Hellenism, the system of thought and creativity based on Greek language and culture, human reason could be applied to developing general theories to explain natural, cosmic, and psychological phenomena. These thinkers saw no contradiction between efforts to detect universal patterns in nature and their conviction that the gods fundamentally ruled it.

Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客 Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

Definition of Panorama Teaching Units

4.0

Expanding Networks of Exchange and Encounter

1200 BCE - 500 CE

Summary of Teaching Unit

PowerPoint Overview Presentation:

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Expanding Networks of Exchange and Encounter  - demosthenes - demosthenes的博客

Definition of Landscape Teaching Units

4.1

From the Mediterranean to India:

Patterns of power and trade

1200 - 600 BCE

Summary of Teaching Unit

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4.2

The expansion of complex society in East Asia

1200 - 300 BCE

Summary of Teaching Unit

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4.3

Migration and change in Africa south of the Sahara

1000 - 200 CE

Summary of Teaching Unit

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4.4

From the Mediterranean to India:

An age of Greek and Persian power

600 - 200 BCE

Summary of Teaching Unit

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4.5

Giant empires of Afroeurasia

300 BCE - 200 CE

Summary of Teaching Unit

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4.6

Empires and city-states of the Americas

800 BCE - 500 CE

Summary of Teaching Unit

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Definition of Closeup Teaching Units

4.2.1

Belief Systems in China:

Confucianism, Daoism, and Buddhism

581 BCE - 1368 CE

Summary of Teaching Unit

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4.4.1

The Budding of Buddhism

563 BCE – 150 CE

Summary of Teaching Unit

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4.4.2

Pressured by Persia: The Persian Empire

550 BCE - 479 BCE

Summary of Teaching Unit

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4.5.1

Roman Art and Architecture

500 BCE – 400 CE

Summary of Teaching Unit

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Footnotes:

1 Andrew Bosworth, “World Cities and World Economic Cycles,” in Stephen K. Sanderson, ed. Civilizations and World Systems (Walnut Creek, CA: Altamira Press, 1995), 216.

2 Data adapted from Rein Taagepera, “Size and Duration of Empires: Systematics of Size,” Social Science Research 7 (1978): 108-127.

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