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Were there any instances in the ancient periods of Greece and Rome, where the succeeding monarchs/state leaders refused to acknowledge the coins issued by the preceding monarch, i.e., decreed the previous coins as illegal tenders? If that ever happened, were the populace being given new coins in exchange for the old ones or those old ones became only as good as the metals that could be extracted from it by melting or any other method? Was there any instance where the monarch invalidated the old coins and refused to take any liability for those coins?

If such instances in Greece/Rome isn't but the similar event(s) happened in places other than Greece, Rome and in any period other than ancient, mention of that will work as well.

  • They just remained in circulation. – Alex Oct 5 '18 at 2:48
  • Not quite what you're asking for, but Spain did recall and remint large quantities of underweight coins after the Potosí scandal. If you want to know more, probably better to ask a separate question (after researching it yourself, of course). – Peter Taylor Oct 17 '18 at 15:37
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Ancient Greece

Coins in Classical Greece did not bear the image of rulers so there was no 'personal' motive to recall coins issued during the time of previous rulers. Coins featured images of gods, goddesses, animals and objects. The most widely distributed coinage in Classical Greece was that of Athens, which was

uniform to the point of monotony - an uninspired repetition of the old formulas, and often carelessly executed at that.

As for the process by which old coins were replaced, there is this example: during the latter stages of the Peloponnesian War, Athens ran short of silver and issued bronze coins (around 406/405 BC). Later (when exactly is disputed, but possibly as early as 404 BC), the Athenians reverted to silver. J.H. Kroll, citing Adalberto Giovannini, (pdf) says this was done thus:

the withdrawal of the bronze through an exchange for silver may have been a gradual process that began in 404 and only ended with the herald’s declaration of demonetization.

Aristophones refers to these changes in coinage in two of his plays, The Frogs (405 BC) and Ecclesiazusae (392 BC).

If your primary interest is monarchs, only the Spartans among the major city states had kings (a dual monarchy) in the classical period, during which time they did not issue coins.


Ancient Rome

Coins in Ancient Rome usually remained in circulation even after an emperor was deposed or died. Changes usually came about due to changes in the monetary system and / or because of economic circumstances, which more often than not meant debasing.

One case where coins of a specific emperor were recalled appears to be Pescennius Niger, emperor from April 193 to May 194. According to Roman Numismatics

The scarcity of Pescennius Niger's coinage today belies the fact that it was struck on a monumental scale, and we can only assume that after his defeat at the hands of Septimius Severus in AD 194 his coins were meticulously recalled and melted.

Although Pescenius Niger coins are rare today, they were struck in large numbers and at

a standard markedly inferior to that of any previous Roman denarii, below even those of Commodus’ last three years.

Source: A. R. Birley, Septimius Severus

As Niger only ever controlled parts of the eastern empire, his coins were all struck there, mostly in Antioch. After his defeat by Septimius Severus, Niger's family were executed, his lands confiscated and his supporters punished. Further,

portraits honoring Pescenius Niger were destroyed as a consequence of his proclamation as a hostis. [enemy of the state]

There was thus a concerted effort at removing all traces of Niger, who had been a rival to Severus; as coins were a valuable propaganda tool for emperors and (with the emperor's head on every coin) a symbol of the unity of the empire, Niger's coins would have been an obvious target for destruction. Severus was quick to mint coins with his head, some of which may have been exchanged for Niger coins handed in.


Medieval and Early Modern Examples

In England, after the Norman conquest, William I

issued huge numbers of silver pennies and operated more than seventy mints as the coins of former Anglo-Saxon monarchs poured into the melting pot to emerge from the striker’s anvil bearing the new king’s portrait.

Source: C. H. Perkins (ed), England's Striking History

Later, after the English Civil War (1642-51), coins bearing the head of Charles I (who, of course, lost his head in 1649) were replaced. The restoration in 1660 led to coins minted during the Commonwealth being

suppressed and called in for recoining between 1661 and 1663, with an estimated two-thirds out of the total minted since 1649 being recovered.

Throughout the Middle Ages, it appears that the common method for replacing old coinage was through exchange (old for new).


Other sources:

David R. Sear, Roman Coins and their Values

Imperial Publicity on Coins of the Roman Emperors

Roman Coins

Rome: A Thousand Years of Monetary History

Did Roman coins of previous emperors stay legal tender during other emperors rei

The Reka-Devnia Hoard

Takeshi Amemiya, Economy and Economics of Ancient Greece (2007)

John F. Chown, A History of Money from AD 800

Roger Svensson, The search for seignorage: periodic re-coinage in medieval Sweden

T. J. Sargent & F. R. Velde, The Evolution of Small Change

  • Excellent answer, but I miss some allusions to the hellenistic kingdoms that inherited the conquests of Alexander The Great. They used to have a lot of kings. – Ginasius Oct 4 '18 at 17:30

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