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Currency history

Sasanian and early Islamic eastern drahm–dirham reckoning

Sasanian and early Islamic eastern drahm–dirham reckoning: a historical unit of account.

Dates in use
Introduction and ending not established
Ancestry branch
Attic drachma
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The story

Berk.34 records an agreement concerning vineyard taxation in the Qom district, with the liability described in drahms. This establishes local fiscal reckoning; the precise nature of the religious differential remains interpretive. [1]

Berk.154 values agricultural produce in drahms toward a money-tax payment and totals 45 stēr. Benfey identifies the total as 180 dirhams: stēr is an account multiple within this reckoning. [2]

Turning points

Account-unit observation

Under Khusro I, annual poll assessments were graded at 4, 6, 8 or12 dirhams. The 531–579 reign bounds a retrospectively reported fiscal witness, not a currency foundation or contemporary dated document. [3]

Sources and evidence

  1. Thomas Benfey, Invisible East Digital Corpus, adapting Dieter Weber · Berk.34 recto, IEDC 1036 C1818 ↗
  2. Thomas Benfey, Invisible East Digital Corpus, adapting Dieter Weber · Berk.154 recto, IEDC 1062; Thomas Benfey · Middle Persian documents and the making of the Islamic fiscal system: problems and prospects C1819 ↗
  3. Michael G. Morony · Iraq After the Muslim Conquest (Princeton,1984); Rika Gyselen · FISCAL SYSTEM ii. SASANIAN (1999) C2026 ↗

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“Sasanian and early Islamic eastern drahm–dirham reckoning.” The Family Tree of Money. © Field Technologies, Inc. Reader edition 2026-10-13; research dataset v44. https://familytreeofmoney.org/currency/CUR-V29-QOM-DRAHM-STER.html

Editorial evidence supplement · Download dataset v44

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