A tribute (ˈtrɪbjuːt; from Latin tributum, "contribution") is wealth, often in kind, that a party gives to another as a sign of submission, allegiance or respect. Various ancient states exacted tribute from the rulers of lands which the state conquered. In the case of alliances, lesser parties may pay tribute to more powerful parties as a sign of allegiance. Tributes are different from taxes, as they are not collected in the same regularly routine manner that taxes are. Further, with tributes, a recognition of political submission by the payer to the payee is uniquely required.
The ancient Persian Achaemenid Empire is an example of an ancient tribute empire; one that made relatively few demands on its non-Persian subjects other than the regular payment of tribute, which might be gold, luxury goods, animals, soldiers or slaves. Failure to keep up the payments had dire consequences. The reliefs at Persepolis show processions of figures bearing varied types of tribute.
The Aztec Empire is another example, as it received tribute from the various city-states and provinces that it conquered.
The medieval Mongol rulers of Russia also expected nothing more than tribute from the Russian states, which continued to govern themselves.
Athens received tribute from the other cities of the Delian League.
The empires of Assyria, Babylon, Carthage and Rome exacted tribute from their provinces and subject kingdoms.
The large sums, essentially protection money, paid by the later Roman and Byzantine Empires to barbarian peoples to prevent them attacking imperial territory, are not considered tributes, as the Empire accepted no inferior political position. Such payments, made by a superior political entity to an inferior, is instead known as a "subsidy".
Ancient China received tribute from various states such as Japan, Korea, Vietnam, Cambodia, Borneo, Indonesia, Sri Lanka, Nepal, Myanmar and Central Asia (listed here).