A sea made for early seafaring
The Mediterranean is a nearly enclosed sea with many islands, deep bays and coasts that are often within sight of each other. Those features made it one of the first places where people regularly crossed open water. Obsidian from the island of Melos turns up on the Greek mainland in prehistoric contexts, which suggests that sea crossings were being made long before written records. The sea also has real difficulties: sudden storms, a lack of reliable tides to help sailors, and long periods in which winter weather made voyages risky. For much of antiquity, sailing was therefore a seasonal activity, with most voyages taking place in the warmer months.
Bronze Age trade
By the second millennium BC, merchants were moving metals, pottery, oils, textiles and luxury goods between Egypt, the Levant, Cyprus, Anatolia and the Aegean. The best evidence is archaeological. The Uluburun shipwreck, off the southern coast of Turkey and usually dated to the late fourteenth century BC, carried copper and tin ingots, glass, and objects from several cultures. It gives a rare snapshot of how varied one ship’s cargo could be. Ships of this period were sail-powered merchantmen with a single mast and a square sail, steered with large side oars rather than a rudder hung on the stern.
Phoenicians, Greeks and Carthage
From about the early first millennium BC, the Phoenician cities of the Levant, such as Tyre, Sidon and Byblos, became leading maritime traders, and they founded settlements across the central and western Mediterranean. Carthage, in modern Tunisia, was traditionally founded in the ninth century BC and grew into a major naval and commercial power. The design and layout of Phoenician harbours at Tyre and Carthage were closely tied to this trade, with protected anchorages and, at Carthage, facilities that were later described by Greek and Roman writers.
Greek cities were also expanding. Between roughly the eighth and sixth centuries BC, Greek settlers founded colonies from the Black Sea to southern Italy, Sicily and the coast of what is now France and Spain. Greek colonial voyages and Greek merchant fleets linked these settlements to their home cities. Warships of the period were long, narrow, oared vessels; the trireme, with its three banks of rowers, became the standard line-of-battle ship of the classical Greek world. Its use at the Battle of Salamis in 480 BC, where a Greek fleet defeated a larger Persian force, is among the best-known naval episodes of antiquity.
Rome and the Mediterranean as a Roman sea
Rome began as a land power and developed a significant fleet during its wars with Carthage in the third century BC. Over the following centuries it came to control almost every shore of the Mediterranean, and Romans later called it mare nostrum, “our sea”. The Battle of Actium in 31 BC, fought off the coast of western Greece, was a decisive episode in the civil wars that brought Augustus to power. After that, large-scale naval war in the Mediterranean was less common for a long time, and the Roman navy fleets were used largely to patrol against piracy and to support the army and the grain supply.
Roman merchant ships could be large by pre-modern standards. Grain from Egypt and North Africa supplied Rome, and some cargo ships carried thousands of amphoras of wine, oil and fish sauce. Exact capacities are debated, so figures for individual ships should be treated with caution.
Byzantines, Arabs and the medieval galley
After the western Roman Empire fragmented, the eastern empire based at Constantinople kept a substantial navy. Its oared warships, often called dromons, were supported by a weapon known as Greek fire, an incendiary mixture whose exact composition has never been settled by historians. From the seventh century, Arab fleets contested the eastern Mediterranean, and sea power shifted back and forth between Christian and Muslim states for centuries.
Between roughly the tenth and fifteenth centuries, the Italian maritime republics of Amalfi, Pisa, Genoa and Venice built trading networks reaching from Spain to the Black Sea and Egypt. Venice’s state shipyard, the Venetian Arsenal, became famous for organised, large-scale production. Merchant galleys, with oars and sails, carried high-value cargo, while round-hulled sailing ships took bulk goods. Sailors increasingly relied on the magnetic compass, and written sailing directions and portolan charts recorded harbours and coastlines with a practical accuracy that earlier maps lacked.
The last great galley fleets
Galleys remained in service in the Mediterranean long after they had largely disappeared from northern waters, partly because calms are frequent and the distances between ports are modest. The Battle of Lepanto in 1571, fought off western Greece between an Ottoman fleet and a coalition of Christian states, involved hundreds of galleys and is often described as the largest galley battle in European history. Its immediate strategic effects were limited, but it is remembered as the last major fleet action dominated by oared warships. Galleys continued in use by several navies into the eighteenth century, and corsairs based on the North African coast and Christian knightly orders such as the Knights of Malta fought a long, small-scale war at sea.
Sail, steam and the Suez Canal
From the sixteenth century, the centre of European maritime trade shifted toward the Atlantic, and the Mediterranean became in some respects less central, although regional trade stayed lively. Its fortunes changed again in the nineteenth century. Steamships began to operate on regular Mediterranean routes, and the opening of the Suez Canal in 1869 created a direct link to the Red Sea and Indian Ocean. Suez Canal shipping made the Mediterranean once more part of a main route between Europe and Asia, and the sea’s ports grew accordingly.
The modern sea
Today the Mediterranean carries a significant share of the world’s seaborne traffic, with large container and bulk ports on its European, North African and Levantine coasts, as well as ferries, cruise ships and fishing fleets. It is also the setting for migration, naval deployments and environmental pressures, subjects that are still developing and lie beyond a history of ships. What stands out across the long record is continuity: the same harbours, winds and trade connections have shaped Mediterranean seafaring from the Bronze Age to the container era, even as the vessels themselves changed beyond recognition.