Note 017
From Chapter 50 of the Decline & Fall

The name of city, Medina, was appropriated, Ancient Greek to Yatreb. (the Iatrippa of the Greeks,) the seat of the prophet. The distances from Medina are reckoned by Abulfeda in stations, or days' journey of a caravan, (p. 15): to Bahrein, 15; to Bassora, 18; to Cufah, 20; to Damascus or Palestine, 20; to Cairo, 25; to Mecca 10; from Mecca to Saana, (p. 52.) or Aden, 30; to Cairo, 31 days, or 412 hours, (Shaw's Travels, p. 477.) which, according to the estimate of D'Anville, (Mesures Itineraires, p. 99.) allows about twenty-five English miles for a day's journey. From the land of frankincense (Hadramaut, in Yemen, between Aden and Cape Fartasch) to Gaza in Syria, Pliny (Hist. Nat. xii. 32) computes 65 mansions of camels. These measures may assist fancy and elucidate facts.