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Which public works were promoted by the Barmakid family?

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The Barmakid family, who served as influential viziers to the early ‘Abbāsid caliphs, promoted several types of public works to benefit the empire. Specifically, they were responsible for the development of:

  • Canals
  • Mosques
  • Postal services

While these contributions supported infrastructure, the family was also noted for their significant patronage of science, literature, and philosophy. However, historical accounts also indicate that they simultaneously spent vast sums of money on the construction of magnificent palaces along the Tigris River.1