“urban” and “urbanism.” The Romans distinguished between population centers of different
scales, between city, town (oppidum), and village (vicus), and so do we. The absolute population of
a city need not be big, but the city is larger than a town, a village, and a hamlet (to rank the English
words for settlements in descending order, according to size). In demographic terms, a city exists
as such only by virtue of its contrast to towns and other smaller settlements. These definitions
are relative, however, and can vary according to the position of the observer. For the resident of
a village, any larger settlement might seem worthy of the title of city.
In addition, a city (or town, etc.) as a place of habitation is defined in opposition to the coun-
tryside. Yet, although opposed in definition, city and countryside are in fact mutually dependent.
The resources of the countryside (land, raw materials, agricultural products) support the city,
while the city administers and protects the countryside.
That a city is a place attracting a concentration of people indicates the city has something to
offer. The lures are often economic, with sources of livelihood based on a natural resource (such
as copper, on Cyprus) or a geographical situation advantageous for commerce (a harbor, for
example, or a natural crossroads) or an ecological base fostering agricultural prosperity. Attrac-
tions might be military (thanks to a defensible location) or ideological (choices made by the ruler:
he has picked the place as a capital, or his family may come from there; or the place witnessed
a sacred event or shelters a sacred object, either of which gives the place sanctity and draws
pilgrims). These economic and ideological factors can change or disappear with time. A harbor
might fill with silt, the area becoming malarial (as at Roman Paestum), thereby killing off both
trade and agriculture. Military and defense requirements might change, and new ruling families
might base themselves elsewhere.
The city thus becomes characterized by the functions that it serves. Such functions may
include a ceremonial or ritual role, in which the city may be understood as the center of the uni-
verse, or reflecting cosmic or divine truths. The city might also serve as an administrative center
or as a commercial center, or some combination of the above three. Whatever they may be, such
functions reflect the city’s dominant role in a society. Indeed, for Mumford (1938: 3), the city is
“a point of maximum concentration for the power and culture of a community.”
The social organization of the urban population indeed has much to say about the nature of a
city. Cities, at the top of the hierarchy of settlements, are a product of socially stratified societies.
The city happens when the group living in a community is larger than an extended family unit,
a band, or a tribe, and is organized into something more diversified than a military, political, or
religious unit (such as a fort, a national capital, or a monastery). Further, city dwellers cannot
possibly know each other; they are too numerous for that. The concept of “city” thus implies
social distinctions among its populace. Just as the urban–rural contrast denotes difference, so
too within the city we find contrasts between rulers (elite groups) and the ruled, between richer
and poorer. Differences in work, with specializations of occupation, some more prestigious than
others, also contribute to the social hierarchy. In addition, inhabitants might be marked by ethnic
and religious differences. Hence Wirth’s 1938 definition of a city: “a relatively large, dense, and
permanent settlement of socially heterogeneous individuals.” These social distinctions can affect
the appearance and layout of a city, with monumental temples and palaces erected in certain
areas, but with commercial and industrial establishments and lower-class residential neighbor-
hoods grouped elsewhere.
A related definition of the city would be socio-economic: the city is a unit that supports itself eco-
nomically, and extends its economic and political influence over an area broader than its immedi-
ate territory. A detailed definition of this sort was offered in 1950 by the Australian prehistorian
V. Gordon Childe in an investigation of the origins of cities in the Ancient Near East, distilled
2 INTRODUCTION