Taxation districts of the Achaemenid Empire

Herodotus divided the Achaemenid Empire into 20 districts for the purpose of tribute payments.

The following is a description of the ethnic makeup of the districts and the amount they paid in taxes, translated from Herodotus' Histories.

[2][1] Only the Hindush paid in gold, the exchange rate of gold to silver being 1 to 13 by weight at the time of Herodotus.

[2][1] The order of the districts given here follows Herodotus, Histories, III.90–94.

The official Persian order of the provinces, as devised under Darius I in 518 BCE, was different and started from the Empire's capital: 1.