Tahmasp’s prohibition of bang is publicized in Safavid Iran

A prohibition of bang, meaning cannabis, was publicized under Shah Tahmasp I in Safavid Iran in 941 AH, corresponding to 1534–1535. Its history requires distinguishing a ruler’s personal renunciation of intoxicants from the later circulation of a public command.

Evidence of a public prohibition

Rudi Matthee identifies a rescript displayed beside the Masjid-i Mir ʿAmad in Kashan which included bang among the prohibited activities and substances. He also reports publication of the ban at Herat in the same Islamic year. His reference leads to an edited collection of Tahmasp’s documents.

This account rests on Matthee’s reading of those materials. The original inscription and the Persian document edition have not been independently inspected for this article. The database uses 1534 as a sorting year while retaining the full 1534–1535 range in its description.

Repentance and promulgation

Jean Calmard’s account of a seminar reading of Tahmasp’s memoir places the shah’s abandonment of hashish and wine in 939 AH, or 1532–1533. Calmard worked from a sixteenth-century manuscript, British Library Or. 5880, and describes a narrative in which a prophetic vision leads to prohibitions in the kingdom.

These observations support the distinction between personal conduct and government action. A date attached to repentance need not be the date when a particular town received or displayed an edict. Using the two interchangeably produces an appearance of precision that the evidence does not warrant.

What substances were covered

Ranin Kazemi’s publicly accessible note 115 explicitly identifies bang and alcohol as objects of Tahmasp’s public prohibition, while qualifying whether opium was targeted. Only that note, rather than the paywalled article in full, supplies the corroboration used here.

The qualification matters because a campaign described broadly as a ban on drugs may still treat individual substances differently. Evidence for cannabis prohibition cannot automatically establish identical rules for opium, or the reverse.

Reading a royal account critically

Calmard cautions that Tahmasp’s memoir contains omissions, confused passages and exaggerations and should be compared with contemporary chronicles. A royal account of moral reform consequently needs scrutiny alongside its value as evidence of the ruler’s intentions.

The sources establish an early Safavid prohibition involving cannabis. They do not, by themselves, measure compliance, establish a uniform cannabis sentencing tariff, or demonstrate continuous enforcement into modern times. This is a historical context event for Iran, without an inferred centuries-long score regime.^[1][2][3]