
State formation is the process of the development of a centralized government structure in a situation where one did not exist prior to its development. State formation has been a study of many disciplines of the
social science
Social science is one of the branches of science, devoted to the study of societies and the relationships among individuals within those societies. The term was formerly used to refer to the field of sociology, the original "science of soc ...
s for a number of years, so much so that Jonathan Haas writes that "One of the favorite pastimes of social scientists over the course of the past century has been to theorize about the evolution of the world's great civilizations."
The study of state formation is divided generally into the study of ancient state formation (those that developed in
stateless societies), medieval or early modern state formation, and the study of modern state formation (particularly of the form that developed in Europe in the 17th century and spread around the world). State formation can include
state-building and
nation-building.
Academic debate about various theories is a prominent feature in fields like Anthropology, Sociology, Economics and Political Science. Dominant frameworks emphasize the superiority of the state as an organization for waging war and extracting resources. Prominent theories for medieval, early modern, and modern state formation emphasize the roles of warfare, commerce, contracts, and cultural diffusion in ushering in the state as a dominant organizational form.
The state
There is no
academic consensus on the definition of the state.
[Cudworth et al., 2007: p. 1] The term "state" refers to a set of different, but interrelated and often overlapping, theories about a certain range of political
phenomena
A phenomenon ( : phenomena) is an observable event. The term came into its modern philosophical usage through Immanuel Kant, who contrasted it with the noumenon, which ''cannot'' be directly observed. Kant was heavily influenced by Gottfried ...
.
[Barrow, 1993: pp. 9–10] According to Walter Scheidel, mainstream definitions of the state have the following in common: "centralized institutions that impose rules, and back them up by force, over a territorially circumscribed population; a distinction between the rulers and the ruled; and an element of autonomy, stability, and differentiation. These distinguish the state from less stable forms of organization, such as the exercise of chiefly power."
The most commonly used definition is by
Max Weber
Maximilian Karl Emil Weber (; ; 21 April 186414 June 1920) was a German Sociology, sociologist, historian, jurist and political economy, political economist, who is regarded as among the most important theorists of the development of Modernity, ...
who describes the state as a compulsory political organization with a
centralized government that maintains a
monopoly of the legitimate use of force within a certain territory.
[Cudworth et al., 2007: p. 95][Salmon, 2008]
p. 54
Weber writes that the state "is a human community that (successfully) claims the monopoly of the legitimate use of physical force within a given territory."
Charles Tilly
Charles Tilly (May 27, 1929 – April 29, 2008) was an American sociologist, political scientist, and historian who wrote on the relationship between politics and society. He was a professor of history, sociology, and social science at the Uni ...
defines states as "coercion-wielding organisations that are distinct from households and kinship groups and exercise clear priority in some respects over all other organizations within substantial territories." The state is considered to be territoriality bound and is distinct from tribes, lineages, firms, churches and other units without centralized institutions.
Tilly defines a state's "essential minimal activities" as:
# War making – "eliminating or neutralizing their own rivals"
# State making – "eliminating or neutralizing their rivals inside their own territory"
# Protection – "eliminating or neutralizing the enemies of their clients"
# Extraction – "acquiring the means of carrying out the first three activities"
# Adjudication – "authoritative settlement of disputes among members of the population"
# Distribution – "intervention in the allocation of goods among the members of the population"
# Production – "control of the creation and transformation of goods and services produced by the population"
Jeffrey Herbst holds that there is another relevant characteristic of modern states:
nationalism
Nationalism is an idea and movement that holds that the nation should be congruent with the State (polity), state. As a movement, nationalism tends to promote the interests of a particular nation (as in a in-group and out-group, group of peo ...
. This feeling of belonging to a certain territory plays a central role in state formation since it increases citizens' willingness to pay taxes.
According to
Michael Hechter and
William Brustein, the modern state was differentiated from "leagues of independent cities, empires, federations held together by loose central control, and theocratic federations" by four characteristics:
# The modern state sought and achieved territorial expansion and consolidation
# The modern state achieved unprecedented control over social, economic, and cultural activities within its boundaries
# The modern state established ruling institutions that were separate from other institutions
# The ruler of the modern state was far better at monopolizing the means of violence
Explaining early states and explaining modern states
Theories of state formation have two distinct focuses, depending largely on the field of study:
# The early transition in human society from tribal communities into larger political organizations. Studies of this topic, often in
anthropology
Anthropology is the scientific study of humanity, concerned with human behavior, human biology, cultures, societies, and linguistics, in both the present and past, including past human species. Social anthropology studies patterns of be ...
, explore the initial development of basic administrative structures in areas where states developed from stateless societies. Although state formation was an active research agenda in anthropology and archaeology until the 1980s, some of the effort has changed to focus not on why these states formed but on how they operated.
# In contrast, studies in
political science
Political science is the scientific study of politics. It is a social science dealing with systems of governance and power, and the analysis of political activities, political thought, political behavior, and associated constitutions and ...
and in
sociology
Sociology is a social science that focuses on society, human social behavior, patterns of social relationships, social interaction, and aspects of culture associated with everyday life. It uses various methods of empirical investigation and ...
have focused significantly on the formation of the modern state.
Scholars differ in their definition of the state and in the time periods in which state formation occurred.
Ancient state formation
States are minimally defined by anthropologist David S. Sandeford as socially stratified and bureaucratically governed societies with at least four levels of settlement hierarchy (e.g., a large capital, cities, villages, and hamlets). Primary states are those state societies that developed in regions where no states existed before. These states developed by strictly internal processes and interaction with other non-states societies. The exact number of cases which qualify as primary states is not clearly known because of limited information about political organization before the development of writing in many places, but Sandeford lists ten likely cases of primary state formation in Eurasia, the Americas, and the Pacific.
Studies on the formation of the first states tend to focus on processes that made statehood feasible. Prominent explanations for the emergence of the first states emphasize domestication of plants and animals, as well as complex water management systems. Some scholars point to greater
land productivity as a prerequisite for the state, whereas others point to the adoption of easy-to-tax crops, such as
cereal grains
A cereal is any grass cultivated for the edible components of its grain (botanically, a type of fruit called a caryopsis), composed of the endosperm, germ, and bran. Cereal grain crops are grown in greater quantities and provide more food ...
. Some scholars point to military revolutions rooted in bronze metallurgy and iron metallurgy, which made it easier for large states to control and conquer vast territories.
Examples of early states which developed in interaction with other states include the
Aegean Bronze Age Greek civilizations and the
Malagasy civilization in Madagascar. Unlike primary state formation, early state formation does not require the creation of the first state in that cultural context or autonomous development, independently from state development nearby. Early state formation causation can thus include borrowing, imposition, and other forms of interaction with already existing states.
Early state formation
Early state formation occurred in China during the and after the
Warring States period
The Warring States period () was an era in ancient Chinese history characterized by warfare, as well as bureaucratic and military reforms and consolidation. It followed the Spring and Autumn period and concluded with the Qin wars of conquest ...
(475-221 BCE).
State formation occurred in Japan and Korea during the period 400-800 CE.
The key institutional innovation of East Asian state formation was the world's first
civil services.
Early state formation in Europe happened in the late 9th century to the early 11th century, as stable kingdoms formed in Germany, France, England, and Scotland; three stable, large kingdoms formed in Scandinavia (Denmark, Norway and Sweden), as well as three in East Central Europe (Poland, Bohemia and Hungary).
Historian
R.I. Moore
Robert Ian "Bob" Moore (born 1941), most commonly known as R. I. Moore, is a British historian who is Professor Emeritus of History at Newcastle University. He specialises in medieval history and has written several influential works on t ...
argues that 970–1215 was the crucial period in European state formation.
Historian
Sverre Bagge argues that "in its main features, the European state system seems to have been formed between the division of the
Carolingian Empire
The Carolingian Empire (800–888) was a large Frankish-dominated empire in western and central Europe during the Early Middle Ages. It was ruled by the Carolingian dynasty, which had ruled as kings of the Franks since 751 and as kings of the ...
and around 1200. At the latter date, there were fifteen kingdoms in Europe: England, Scotland, France, Castile, Aragon, Portugal, Navarra, Sicily, Germany, Poland, Bohemia, Hungary, Denmark, Norway and Sweden."
Of these 15 kingdoms, seven were still in existence by 1648.
Of those that disappeared, it was usually due to marriage alliances and hereditary succession.
Some scholars such as Charles Tilly and
Otto Hintze primarily characterize European state formation as an early modern 16th to 18th century phenomenon, emphasizing the establishment of state sovereignty in international relations.
Some date state formation later to the early 19th century, pointing to the establishment of a monopoly on violence within a demarcated territory.
Modern state formation
Theories on the formation of modern states focus on the processes that support the development of modern states, particularly those that formed in late-medieval Europe and then spread around the world with colonialism. Starting in the 1940s and 1950s, with
decolonization processes underway, attention began to focus on the formation and construction of modern states with significant bureaucracies, ability to tax, and territorial sovereignty around the world. However, some scholars hold that the modern state model formed in other parts of the world prior to colonialism, but that colonial structures replaced it.
Safavid Iran is one such example.
Scholarship on modern state formation frequently uses European state formation as its referent point.
Theories about early state development
There are a number of different theories and hypotheses regarding early state formation that seek generalizations to explain why the state developed in some places but not others. Other scholars believe that generalizations are unhelpful and that each case of early state formation should be treated on its own.
The earliest forms of the state emerged whenever it became possible to centralize power in a durable way. Agriculture and a settled population have been attributed as necessary conditions to form states.
Certain types of agriculture are more conducive to state formation, such as grain (wheat, barley, millet), because they are suited to concentrated production, taxation, and storage.
Voluntary theories

Voluntary theories contend that diverse groups of people came together to form states as a result of some shared rational interest. The theories largely focus on the development of agriculture, and the population and organizational pressure that followed and resulted in state formation. The argument is that such pressures result in integrative pressure for rational people to unify and create a state. Much of the
social contract
In moral and political philosophy, the social contract is a theory or model that originated during the Age of Enlightenment and usually, although not always, concerns the legitimacy of the authority of the state over the individual.
Social ...
philosophical tradition proposed a voluntary theory for state formation.
One of the most prominent theories of early and primary state formation is the ''hydraulic hypothesis'', which contends that the state was a result of the need to build and maintain large-scale irrigation projects. The theory was most significantly detailed by
Karl August Wittfogel's argument that, in arid environments, farmers would be confronted by the production limits of small-scale irrigation. Eventually different agricultural producers would join together in response to
population pressure and the arid environment, to create a state apparatus that could build and maintain large irrigation projects.
In addition to this, is what Carneiro calls the ''automatic hypothesis'', which contends that the development of agriculture easily produces conditions necessary for the development of a state. With surplus food stocks created by agricultural development, creation of distinct worker classes and a division of labor would automatically trigger creation of the state form.
A third voluntary hypothesis, particularly common with some explanations of early state development, is that long distance trade networks created an impetus for states to develop at key locations: such as ports or oases. For example, the increased trade in the 16th century may have been a key to state formation in West African states such as
Whydah,
Dahomey
The Kingdom of Dahomey () was a West African kingdom located within present-day Benin that existed from approximately 1600 until 1904. Dahomey developed on the Abomey Plateau amongst the Fon people in the early 17th century and became a regio ...
, and the
Benin Empire.
Conflict theories
Conflict theories of state formation regard conflict and dominance of some population over another population as key to the formation of states. In contrast with voluntary theories, these arguments believe that people do not voluntarily agree to create a state to maximize benefits, but that states form due to some form of oppression by one group over others. A number of different theories rely on conflict, dominance, or oppression as a causal process or as a necessary mechanism within certain conditions and they may borrow from other approaches. In general the theories highlight: ''economic stratification'', ''conquest of other peoples'', conflict in ''circumscribed areas'', and the neo-evolutionary growth of bureaucracy.

:*''Economic stratification''
::
'' (1884). The theory of Engels developed from study of ''Ancient Society'' (1877) by
Lewis H. Morgan and from the sketches of this work by
Karl Marx
Karl Heinrich Marx (; 5 May 1818 – 14 March 1883) was a German philosopher, economist, historian, sociologist, political theorist, journalist, critic of political economy, and socialist revolutionary. His best-known titles are the 1848 ...
on the
Asiatic mode of production. Engels argues that the state developed as a result of the need to protect private property. The theory contended that surplus production as a result of the development of agriculture created a division and specialization of labor, leading to classes who worked the land and to those who could devote time to other tasks. Class antagonism and the need to secure the private property of those living on the surplus production produced by agriculturalists resulted in the creation of the state. The anthropologist
Morton Fried (1923-1986) further developed this approach, positing social stratification as the primary dynamic underlying the development of the state.
:*''Conquest theories''
:: Similar to the economic stratification theories, the conquest theory contends that a single city establishes a state in order to control other tribes or settlements it has conquered. The theory has its roots in the work of
Ibn Khaldun
Ibn Khaldun (; ar, أبو زيد عبد الرحمن بن محمد بن خلدون الحضرمي, ; 27 May 1332 – 17 March 1406, 732-808 AH) was an Arab
The Historical Muhammad', Irving M. Zeitlin, (Polity Press, 2007), p. 21; "It is, o ...
(1332-1406) and of
Jean Bodin (1530–1596), but it was first organized around anthropological evidence by
Franz Oppenheimer (1864-1943). Oppenheimer argues that the state was created to cement inequality between peoples that resulted from conquest.
:*''Carneiro's circumscription theory''

:
::
Robert Carneiro developed a theory (1970) aiming to provide a more nuanced understanding of state formation by accounting for the fact that many factors (surplus agriculture, warfare, irrigation, conquest, etc.) did not produce states in all situations. He concluded that while population pressure and warfare were mechanisms of state formation, they only created states in geographic regions circumscribed, or walled off from the surrounding area. Geographic barriers (or in some cases barriers created by nomadic raiders or by rival societies) create limitations on the ability of the people to deal with production shortfalls, and the result is that warfare results in state creation. In situations of unlimited agricultural land (like the Amazon or the Eastern United States), Carneiro believes that the pressures did not exist and so warfare allowed people to move elsewhere and thus did not spur creation of a state.
:*''Neoevolutionary theories''
:
::A number of different theories, sometimes connected with some of the processes above, explain state formation in terms of the
evolution
Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes, which are passed on from parent to offspring during reproduction. Variation ...
of
leadership
Leadership, both as a research area and as a practical skill, encompasses the ability of an individual, group or organization to "lead", influence or guide other individuals, teams, or entire organizations. The word "leadership" often gets v ...
systems. This argument sees human society as evolving from
tribe
The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide usage of the term in English is in the discipline of anthropology. This definition is contested, in part due to confl ...
s or
chiefdoms into states through a gradual process of transformation that lets a small group hierarchically structure society and maintain order through appropriation of
symbol
A symbol is a mark, sign, or word that indicates, signifies, or is understood as representing an idea, object, or relationship. Symbols allow people to go beyond what is known or seen by creating linkages between otherwise very different conc ...
s of power. Groups that gained power in tribal society gradually worked towards building the hierarchy and segmentation that created the state.
::
Elman Service (1915-1996) proposed that, unlike in economic stratification theories, the state largely creates stratification in society rather than being created to defend that stratification. Bureaucracy evolves to support the leadership structure in tribes and uses religious hierarchy and economic stratification as a means to further increase its power. Warfare may play a key role in the situation, because it allows leaders to distribute benefits in ways that serve their interests, however it is a constant that feeds the system rather than an autonomous factor. Similarly, anthropologist
Henry T. Wright argues (2006) that competitive and conflictual environments produce political experimentation leading to the development of the state. As opposed to theories that the state develops through chance or tinkering, experimentation involves a more directed process where tribal leaders learn from organization forms of the past and from the outcomes they produced.
Other theories
Other aspects are highlighted in different theories as of contributing importance. It is sometimes claimed that technological development, religious development, or socialization of members are crucial to state development. However, most of these factors are found to be secondary in anthropological analysis. In addition to conquest, some theories contend that the need for defense from military conquest or the military organization to conquer other peoples is the key aspect leading to state formation.
Discredited theories
Some theories proposed in the 19th century and early 20th century have since been largely discredited by anthropologists. Carneiro writes that theories "with a racial basis, for example, are now so thoroughly discredited that they need not be dealt with...We can also reject the belief that the state is an expression of the 'genius' of a people, or that it arose through a 'historical accident.' Such notions make the state appear to be something metaphysical or adventitious, and thus place it beyond scientific understanding." Similarly,
social Darwinist perspectives like those of
Walter Bagehot in ''Physics and Politics'' argued that the state form developed as a result of the best leaders and organized societies gradually gaining power until a state resulted. Such explanations are not considered sufficient to explain the formation of the state.
Theories about modern state development
In the
medieval period (500-1400) in Europe, there were a variety of authority forms throughout the region. These included feudal lords, empires, religious authorities, free cities, and other authorities. Often dated to the 1648
Peace of Westphalia
The Peace of Westphalia (german: Westfälischer Friede, ) is the collective name for two peace treaties signed in October 1648 in the Westphalian cities of Osnabrück and Münster. They ended the Thirty Years' War (1618–1648) and brought pe ...
, there began to be the development in Europe of modern states with large-scale
capacity for taxation, coercive control of their populations, and advanced bureaucracies. The state became prominent in Europe over the next few centuries before the particular form of the state spread to the rest of the world via the colonial and international pressures of the 19th century and 20th century. Other modern states developed in Africa and Asia prior to colonialism, but were largely displaced by colonial rule.
Political scientists, sociologists, and anthropologists began studying the state formation processes in Europe and elsewhere in the 17th century—beginning significantly with
Max Weber
Maximilian Karl Emil Weber (; ; 21 April 186414 June 1920) was a German Sociology, sociologist, historian, jurist and political economy, political economist, who is regarded as among the most important theorists of the development of Modernity, ...
. However, state formation became a primary interest in the 1970s. The question was often framed as a contest between state forces and society forces and the study of how the state became prominent over particular societies. A number of theories developed regarding state development in Europe. Other theories focused on the creation of states in late colonial and post-colonial societies. The lessons from these studies of the formation of states in the modern period are often used in theories about
State-building. Other theories contend that the state in Europe was constructed in connection with peoples from outside Europe and that focusing on state formation in Europe as a foundation for study silences the diverse history of state formation.
Based on the model of European states, it has been commonly assumed that development is the natural path that states will eventually walk through. However, Herbst holds that in the case African states, as well as in developing countries of other regions, development need not be the natural step. States that struggle their consolidation could remain permanently weak.
There are three prominent categories of explanations for the emergence of the modern state as a dominant polity: (1) Security-based explanations that emphasize the role of warfare, (2) Economy-based explanations that emphasize trade, property rights and capitalism as drivers behind state formation, and (3) Institutionalist theories that sees the state as an organizational form that is better able to resolve conflict and cooperation problems than competing political organizations. According to
Philip Gorski and Vivek Swaroop Sharma, the "neo-Darwinian" framework for the emergence of sovereign states is the dominant explanation in the scholarship.
The neo-Darwininian framework emphasizes how the modern state emerged as the dominant organizational form through natural selection and competition.
Thomas Ertman wrote in 1997, "it is now generally accepted that the territorial state triumphed over other possible political forms (empire, city-state, lordship) because of the superior fighting ability which it derived from access to both urban capital and coercive authority over peasant taxpayers and army recruits."
According to
Hendrik Spruyt, the modern state is different from its predecessor polities in two main aspects: (1) Modern states have greater capacity to intervene in their societies, and (2) Modern states are buttressed by the principle of international legal sovereignty and the juridicial equivalence of states. The two features began to emerge in the Late Middle Ages but the modern state form took centuries to come firmly into fruition. Spruyt notes that sovereign equality did not become fully global until after World War II amid decolonization.
Adom Getachew writes that it was not until the 1960
Declaration on the Granting of Independence to Colonial Countries and Peoples that the international legal context for popular sovereignty was instituted.
Warfare theories

Two related theories are based on military development and warfare, and the role that these forces played in state formation.
Charles Tilly
Charles Tilly (May 27, 1929 – April 29, 2008) was an American sociologist, political scientist, and historian who wrote on the relationship between politics and society. He was a professor of history, sociology, and social science at the Uni ...
developed an argument that the state developed largely as a result of "state-makers" who sought to increase the taxes they could gain from the people under their control so they could continue fighting wars. According to Tilly, the state makes war and war makes states. In the constant warfare of the centuries in Europe, coupled with expanded costs of war with mass armies and gunpowder, warlords had to find ways to finance war and control territory more effectively. The modern state presented the opportunity for them to develop taxation structures, the coercive structure to implement that taxation, and finally the guarantee of protection from other states that could get much of the population to agree. Taxes and revenue raising have been repeatedly pointed out as a key aspect of state formation and the development of
state capacity. Economist
Nicholas Kaldor emphasized on the importance of revenue raising and warned about the dangers of the dependence on foreign aid. Tilly argues, state making is similar to organized crime because it is a "quintessential protection racket with the advantage of legitimacy." Tilly's theory is prominent in the field of
historical sociology, where scholars have tended to identify the onset of modern state formation as coinciding with the
military revolution in the 16th century.
Michael Roberts and
Geoffrey Parker agree with Tilly that warfare was a key factor, but that the primary causal factor was not the "state-makers" themselves, but simply the military technological revolutions that allowed development of larger armies. The argument is that with the expanded state of warfare, the state became the only administrative unit that could endure in the constant warfare in the Europe of this period, because only it could develop large enough armies. This view—that the modern state replaced chaos and general violence with internal disciplinary structures—has been challenged as ethnocentric, and ignoring the violence of modern states. A 1999 statistical analysis by William R. Thompson and Karen Rasler found support for the notion that major, regional warfare was linked to an increase in army size, but that a military technology revolution was not.
Scholars have debated the applicability of bellicist theories of state formation to non-European regions. Economists Mark Dincecco, James Fenske, Anil Menon, and Shivaji Mukherjee have found evidence for Tilly's thesis in the development of the Indian state, as they show that "districts that were more exposed to pre-colonial conflict experienced greater early state-making." Others have argued that bellicist theories can account for state formation in China during the
Warring States period
The Warring States period () was an era in ancient Chinese history characterized by warfare, as well as bureaucratic and military reforms and consolidation. It followed the Spring and Autumn period and concluded with the Qin wars of conquest ...
, Latin America and Africa. According to Jeffrey Herbst, external security threats have had a fundamental role in the development of the
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed ...
n and
Taiwan
Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northe ...
ese states. However, Chin-Hao Huang and Dave Kang argue that Tilly's bellicist theory of state formation does not account for Korea and Japan, as they did not face intense security threats.
Robert Holden and Miguel Angel Centeno find limited evidence for the applicability of the bellicist theory to state formation in Latin America. A 2017 study which tests the predictions of warfare theories of Tilly and others found that the predictions do not match the empirical record. The study found that median state size decreased from 1100 to 1800, and that the number of states increases rapidly between the twelfth and thirteen centuries and remained constant until 1800.
Historian Sverre Bagge argues that neither external nor internal wars were important per se in processes of state formation.
To what extent warfare was important in state formation, it was indirectly "by mobilizing the aristocracy in the king’s service and by necessitating drastically increased taxation and bureaucratization."
Furthermore, he argues that the chronology of events in China and Europe are inconsistent with Tilly's argument that increasing costs of warfare led to processes of state formation.
Substantial technological and organizational changes that raised the cost of warfare happened in Europe during the same period as when China unified, but Europe did not have unification during that period.
Bagge also argues that the nu