. . . the Persian land alone has not been mentioned by me as paying a contribution, for the Persians have their land to dwell in free from payment.
Translated by George C. Macaulay — our special project presenting the complete Herodotus with URLs for all of those people, places, events, and things which baffles and discourages modern readers.
Previously on Herodotus
92. From Babylon and from the rest of Assyria there came in to him a thousand talents of silver and five hundred boys for eunuchs: this is the ninth division. From Agbatana and from the rest of Media and the Paricanians and Orthocorybantians, four hundred and fifty talents: this is the tenth division. The Caspians and Pausicans and Pantimathoi and Dareitai, contributing together, brought in two hundred talents: this is the eleventh division. From the Bactrians as far as the Aigloi the tribute was three hundred and sixty talents: this is the twelfth division. 
93. From Pactyïke and the Armenians and the people bordering upon them as far as the Euxine, four hundred talents: this is the thirteenth division. From the Sagartians and Sarangians and Thamanaians and Utians and Mycans and those who dwell in the islands of the Erythraian Sea, where the king settles those who are called the “Removed,” from all these together a tribute was produced of six hundred talents: this is the fourteenth division. The Sacans and the Caspians brought in two hundred and fifty talents: this is the fifteenth division. The Parthians and Chorasmians and Sogdians and Areians three hundred talents: this is the sixteenth division.
94. The Paricanians and Ethiopians in Asia brought in four hundred talents: this is the seventeenth division. To the Matienians and Saspeirians and Alarodians was appointed a tribute of two hundred talents: this is the eighteenth division. To the Moschoi and Tibarenians and Macronians and Mossynoicoi and Mares three hundred talents were ordered: this is the nineteenth division. Of the Indians the number is far greater than that of any other race of men of whom we know; and they brought in a tribute larger than all the rest, that is to say three hundred and sixty talents of gold-dust: this is the twentieth division. 
95. Now if we compare Babylonian with Euboïc talents, the silver is found to amount to nine thousand eight hundred and eighty talents; and if we reckon the gold at thirteen times the value of silver, weight for weight, the gold-dust is found to amount to four thousand six hundred and eighty Euboïc talents. These being all added together, the total which was collected as yearly tribute for Darius amounts to fourteen thousand five hundred and sixty Euboïc talents: the sums which are less than these I pass over and do not mention.
96. This was the tribute which came in to Darius from Asia and from a small part of Libya: but as time went on, other tribute came in also from the islands and from those who dwell in Europe as far as Thessaly. This tribute the king stores up in his treasury in the following manner:—he melts it down and pours it into jars of earthenware, and when he has filled the jars he takes off the earthenware jar from the metal; and when he wants money he cuts off so much as he needs on each occasion.
97. These were the provinces and the assessments of tribute: and the Persian land alone has not been mentioned by me as paying a contribution, for the Persians have their land to dwell in free from payment. The following moreover had no tribute fixed for them to pay, but brought gifts, namely the Ethiopians who border upon Egypt, whom Cambyses subdued as he marched against the Long-lived Ethiopians, those who dwell about Nysa, which is called “sacred,” and who celebrate the festivals in honour of Dionysos: these Ethiopians and those who dwell near them have the same kind of seed as the Callantian Indians, and they have underground dwellings. These both together brought every other year, and continue to bring even to my own time, two quart measures of unmelted gold and two hundred blocks of ebony and five Ethiopian boys and twenty large elephant tusks. The Colchians also had set themselves among those who brought gifts, and with them those who border upon them extending as far as the range of the Caucasus (for the Persian rule extends as far as these mountains, but those who dwell in the parts beyond Caucasus toward the North Wind regard the Persians no longer),—these, I say, continued to bring the gifts which they had fixed for themselves every four years even down to my own time, that is to say, a hundred boys and a hundred maidens. Finally, the Arabians brought a thousand talents of frankincense every year. Such were the gifts which these brought to the king apart from the tribute.
98. Now this great quantity of gold, out of which the Indians bring in to the king the gold-dust which has been mentioned, is obtained by them in a manner which I shall tell: -— That part of the Indian land which is towards the rising sun is sand; for of all the peoples in Asia of which we know or about which any certain report is given, the Indians dwell furthest away towards the East and the sun rising; seeing that the country to the East of the Indians is desert on account of the sand. Now there are many tribes of Indians, and they do not agree with one another in language; and some of them are pastoral and others not so, and some dwell in the swamps of the river and feed upon raw fish, which they catch by fishing from boats made of cane; and each boat is made of one joint of cane. These Indians of which I speak wear clothing made of rushes: they gather and cut the rushes from the river and then weave them together into a kind of mat and put it on like a corslet.
– Herodotus, Book III
Note 1: For all of these places in the Persian Empire, consult the map.
Herodotus made his living by being interesting. In a world where most people did not read and could not afford to buy a book even if they could, they would pay to listen to Herodotus recite from his books. They would not pay to be bored. In that world, the names that populate his stories would have some general familiarity to his audience. Their obscurity to us is a barrier that this series seeks to break down.