section_path: Eurasian trends/Feudalism
section_name: Feudalism
paragraph_text: Feudalism
  
  In the context of global history, the label of feudalism has been used to describe any agricultural society where central authority broke down to be replaced by a warrior aristocracy. Feudal societies are characterized by reliance on personal relationships with military elites, rather than a bureaucracy with a state-supported professional standing army. The label of feudalism has thus been used to describe many areas of Eurasia including medieval Europe, the Islamic iqta' system, Indian feudalism, and Heian Japan. Some world historians generalize that societies can be called feudal if authority was fragmented, with a set of obligations between vassal and lord. After the 8th century, feudalism became more common across Europe. Even Byzantium, which had inherited the government of the Roman Empire, chose to devolve its military obligations into themes to increase the number of soldiers and ships available for military service during times of crisis. There were similarities between European feudalism and the Islamic iqta', as both featured landed classes of mounted warriors whose titles were granted by a monarch or sultan. Because of these similarities, it was common for societal structures to be preserved in the face of religious upheaval; for instance, after the Islamic Delhi Sultanate conquered large portions of India, it imposed higher taxes but otherwise left local feudal structures in place.
  
  Though most of Eurasia adopted feudalism and similar systems during this era, China employed a centralized bureaucracy throughout much of the post classical period, particularly after 1000. A major factor that distinguished China from other regions was that local leaders were reluctant to self-identify by their current location; instead, they typically displayed an ambition to unite the country in times of disunity.
  
  Beyond a broad generalization, the usefulness of the term "feudalism" is debated by contemporary historians, as the daily functions of feudalism sometimes differed greatly between world regions. Comparisons between feudal Europe and post-classical Japan have been particularly controversial. Throughout the 20th century, historians often compared medieval Europe to post-classical Japan. More recently, it has been argued that, until roughly 1400, Japan balanced its decentralized military power with more centralized forms of imperial (governmental) and monastic (religious) authority. Only in the Sengoku period did there come to be fully decentralized power dominated by private military leaders. Still other historians reject the term feudalism outright, challenging its ability to usefully describe societies either within or outside of medieval Europe.