Persian Postal Facilities
Then were the king's scribes called on the thirteenth day of the first month…
The postal service for that age was exceedingly good, but only the king could take advantage of it. Indeed, it was one of the means used by him for the government of the empire, and was very largely, according to Herodotus, the device of this same Xerxes. Along the chief lines of travel he established, at intervals of fourteen miles, post-houses, at each of which relays of horses and couriers were always in readiness. One of these messengers, receiving an official document, rode with it at his utmost speed to the next post-house, where it was taken onward by another courier with another horse, and in this way a proclamation like that here described would reach the farthest limits of the empire in five or six weeks.
Parallel VersesKJV: Then were the king's scribes called on the thirteenth day of the first month, and there was written according to all that Haman had commanded unto the king's lieutenants, and to the governors that were over every province, and to the rulers of every people of every province according to the writing thereof, and to every people after their language; in the name of king Ahasuerus was it written, and sealed with the king's ring.
WEB: Then the king's scribes were called in on the first month, on the thirteenth day of the month; and all that Haman commanded was written to the king's satraps, and to the governors who were over every province, and to the princes of every people, to every province according its writing, and to every people in their language. It was written in the name of King Ahasuerus, and it was sealed with the king's ring.