The Living History Engineer's

Roman Sea Trade

While the Romans were famous for the roads they constructed across the empire, they were also adept at establishing a flourishing sea trade which took them to India and into the Mare Erythraeum ( Indian Ocean ). and beyond.

Trade items within the Mediterranean Basin included such commodities as: grain, wine, olive oil, pottery vessels, glass, metals (lead, iron, tin, copper, and gold), , stone (white or colored marble from Asia Minor,  building stone / tiles), textiles (cotton. fine linen, and silk), animals, and slaves.  

The transport of bulk goods was accomplished by sea as a more efficient method of movement.  It is from the Edict of Prices laid down by the Emperor Diocletian in 301 A.D. that we learn the fact that it was more expensive to ship grain 75 miles inland, than it was to transport grain from Spain to Syria.

In recent years, the large number of Roman shipwrecks discovered by archaeologists around the Mediterranean Sea attest to the volume of sea trade in the area, together with it's attendant dangers.  The more important items of trade around the Mediterranen were olive oil, wine, grain and metals.  We also know that the grain fleets from Carthago, Africa (modern day Tunisia ) and Egypt were so important to Rome that control of these provinces were placed under special appointees to insure a steady supply of grain to Rome for the "corn dole" to it's urban population.

Metals and Oil were sought in the lower extremities of Hispania,in the ancient city of Gades ( Cadiz ), wine from Tarraco ( Tarragona ) and Massila (Marsailles), Metals and Wine from Rome , Grain and Metals from Sardinia , Oil and Wine from Aquilia (Grado) and Bononi ( Bologna ), Wine from Ephesus and Athenae, and Oil from Antiochia.  The following materials were transported overland to the nearest Medierranean Ports; Metals from Northwestern Hispania, Toltum (Toledo), Caesaraugusta (Saragossa),Tolosa (Toulouse),.Metals from Britain, Wine from Augusta Trevororum, Metalsfrom Augusta Vindelicorum, and Metals from Arabia.

Further afield the trade routes extended up the Nile River from Alexandria to Meroe and Axum which were also major trade centers and received their goods overland across the desert from the Red Sea ports.. The trade routes extended  through the Sinus Persicus ( Red Sea ) and it was here in Arabia (present day Yemen ) and in the "Horn" of Africa (present day Somaliland ) that the fragrant incense producing areas were found.  From the major trade centers of Antioch , Damascus , Selucia / Ctesiphon another trade route extended   through the Persian Gulf .  Both th Red Sea Route and the Persian Gulf Route led into the Arabian Sea and from there on to Muzirus on the Western tip of India , and from there further on to Masulipatum and Tamluk on India 's Eastern Coast through the Mare Gangeticus ( Bay Of Bengal ).  From there the routes cross the upper reaches of the Mar Gangeticus and then pass through the Straits of Malacca and into the Magnus Sinus (South China Sea) and then to the Major trading Center of Oceo (near the modern day city of Saigon in South Vietnam).  From there there is some mention of the possibility of routes south  and north along the Vietnam and Chinese Coast .

Overland was the well known " Silk Road " by whitch the silks from China traveled. The road extended from Seleuca / Ctesiphon in the West through thr trading centers of Ecbatana , Rhagae , across Parthia (South of the Caspian Sea ) and then on to Hecatompylos. Merv, Samarkand , Tashkent , Urumchi, Turfan and then to Hami which is found on the southern edge of the Altai Mountain Range and the Gobi Desert .

At Hami the " Scythian Route " to the East from Tanais on the shores of the Sea of Azov meets the more southerly route briefly.  This route crosses the Volga River near Volgograd , passes just north of the Ural River , South of the Ural Mountains and North of the Caspian and Aral Seas , across the Isimskaja Steppe, and followed the Irtys' River to Semipalatinsk , South of Lake Zaisan.  .From Hami across the Gobi Desert and North of Lak Nor to Langchow then to Changan (Sera Metropolis – near the present day city of Xi'an) in Serica (China).  From there the " Silk Road " follows the Hwang Ho (Yellow) River to Luoyang (about 400 miles West and just South of the mouth of the Yellow River ). 

Roman merchants traded gold, glassware, and other manufactured goods which turn up today as far away as Vietnam and Malaysia . Romans normally paid for goods in silver and gold coin, and a great many such coins have been found as far away as Afghanistan and Indochina .

The goods primarily traded for in the various areas outside the Mediterranean Basin was spices of all kinds, perfumes, silks, cotton steel, drugs and precious stones.

Goods which were exported from Rome were: jewelry, cut gems, glassware, clothing, amber, coral, and purple dye.

References:

"The Spice Trade of the Roman Empire , 29B.C. to A.D. 641," J. Innes Miller, Oxford at the Clarendon Press,1969;
"Handbook To Life In Ancient
Rome ," Adkins and Adkins, Oxford University Press, New York / Oxford , 1994;
"The Penguin Historical Atlas of Ancient
Rome ." Chris Scarre, Penquin Group, London , 1995.

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