The earliest surviving set, the Periplus of Scylax of about 500 B.C., gives the course and distance (the latter in terms of a day's sail) between various ports.
Abaphili bakuqala baseta, iPeriplasi yeSyclax engangamakhulu amahlanu phambi kokuzalwa kuka Yesu, inika indlela nomgama phakathi kwamanxweme ahlukeneyo.