A republic is a form of government in which the country is considered a "public matter" (Latin: res publica), not the private concern or property of the rulers, and where offices of states are subsequently directly or indirectly elected or appointed rather than inherited. In modern times, a common simplified definition of a republic is a government where the head of state is not a monarch.

Both modern and ancient republics vary widely in their ideology and composition. In classical and medieval times the archetype of all republics was the Roman Republic, which referred to Rome in between the period when it had kings, and the periods when it had emperors. The Italian medieval and Renaissance political tradition today referred to as "civic humanism" is sometimes considered to derive directly from Roman republicans such as Sallust and Tacitus. However, Greek-influenced Roman authors, such as Polybius and Cicero, sometimes also used the term as a translation for the Greek politeia which could mean regime generally, but could also be applied to certain specific types of regime which did not exactly correspond to that of the Roman Republic. An example of this is Sparta, which had two kings but was not considered a normal monarchy as it also had ephors representing the common people. Republics were not equated with classical democracies such as Athens, but had a democratic aspect.

In modern republics such as the United States, Russia, and India, the executive is legitimized both by a constitution and by popular suffrage. Montesquieu included both democracies, where all the people have a share in rule, and aristocracies or oligarchies, where only some of the people rule, as republican forms of government.

Most often a republic is a sovereign state, but there are also subnational entities that are referred to as republics, or which have governments that are described as "republican" in nature. For instance, Article IV of the Constitution of the United States "guarantee to every State in this Union a Republican form of Government". The subdivisions of the Soviet Union were described as republics and two of them – Ukrainian SSR and Byelorussian SSR – had their own seats at the United Nations. While the Constitution of the Soviet Union described that union as a "unitary, federal and multinational state", it was in reality a unitary state as each Soviet Socialist Republic was dominated by the Communist Party.

Read more about Republic:  Origin of The Term, History, Types

Famous quotes containing the word republic:

    I date the end of the old republic and the birth of the empire to the invention, in the late thirties, of air conditioning. Before air conditioning, Washington was deserted from mid-June to September.... But after air conditioning and the Second World War arrived, more or less at the same time, Congress sits and sits while the presidents—or at least their staffs—never stop making mischief.
    Gore Vidal (b. 1925)

    Who is this Renaissance? Where did he come from? Who gave him permission to cram the Republic with his execrable daubs?
    Mark Twain [Samuel Langhorne Clemens] (1835–1910)