Herodotus writes (5th Century BC):
Greek: λέγουσι γὰρ ὡς ὁσέων ἂν ἡμερέων ᾖ ἡ πᾶσα ὁδός, τοσοῦτοι ἵπποι τε καὶ ἄνδρες διεστᾶσι κατὰ ἡμερησίην ὁδὸν ἑκάστην ἵππος τε καὶ ἀνὴρ τεταγμένος: τοὺς οὔτε νιφετός, οὐκ ὄμβρος, οὐ καῦμα, οὐ νὺξ ἔργει μὴ οὐ κατανύσαι τὸν προκείμενον αὐτῷ δρόμον τὴν ταχίστην.
English: It is said that as many days as there are in the whole journey, so many are the men and horses that stand along the road, each horse and man at the interval of a day’s journey; and these are stayed neither by snow nor rain nor heat nor darkness from accomplishing their appointed course with all speed.
General rule: To mail via
USPS you need their
stamp of approval.
Use FedEx when the package absolutely positively needs to get there tomorrow.
Use the USPS when the package absolutely positively needs to get here eventually.