Around 2,600 years ago, a Carthaginian official named Hanno led a fleet of 60 ships out through the Strait of Gibraltar and turned south — into waters no Mediterranean civilization had systematically charted. What followed was one of the most ambitious voyages of exploration in the ancient world, producing the oldest surviving first-hand account of sub-Saharan Atlantic Africa ever written.
What the expedition record shows
- Hanno the Navigator: Hanno held the title of suffete — the highest administrative office in Carthage — and likely belonged to the powerful Magonid clan, suggesting the voyage had full state backing.
- Periplus of Hanno: The account of the journey, known as The Periplus (Coastal Voyage), survived through a single medieval manuscript — a Greek translation of a Punic original once carved on a stone stele around 400 B.C.E., now housed at the University of Heidelberg.
- Atlantic coast of Africa: The fleet reportedly carried around 30,000 men and women, founded multiple colonies along what is now Morocco’s coast, and pushed as far south as a region scholars variously identify as Sierra Leone or Cameroon.
A world beyond the pillars
The Carthaginians called the Strait of Gibraltar the Pillars of Hercules. For most Mediterranean peoples, it marked the edge of the known world. Hanno the Navigator sailed beyond it on what was partly a colonial mission — the fleet founded several settlements along the Moroccan coast — and partly a voyage into genuine geographic unknowing.
The Periplus describes a journey of escalating strangeness and wonder. Past the initial colony at Thymiaterion (near present-day Tangier), the fleet encountered elephants, crocodiles, and hippopotamuses. They traded with Berber pastoralists called the Lixitae, who provided guides and interpreters. They observed enormous grass fires blazing on coastal plains at night. They passed a mountain — possibly Mount Cameroon — that belched fire and lava into the sea, which Hanno’s crew named the Chariot of the Gods.
The text ends abruptly. Scholars believe at least two sections are missing, including the conclusion. What survives is fragmentary, occasionally contradictory in its geography, and — as historian Sabatino Moscati has argued — possibly altered deliberately, with false landmarks inserted to keep Carthage’s Atlantic trade routes secret from rivals.
Knowledge built on local knowledge
One of the less celebrated aspects of Hanno’s voyage is how dependent it was on people who already lived along these coasts. The Lixitae Berber communities provided not just interpreters but geographic intelligence about rivers, inland peoples, and the land beyond the shore. Without that partnership, the fleet could not have navigated as far or as safely as it did.
The peoples Hanno encountered — described in the text through the limited and often distorting lens of Greek translation — were not passive scenery. They resisted, fled, traded, or communicated with the visitors on their own terms. Communities in the interior reportedly used swift runners the Lixitae claimed could outpace horses. Coastal peoples lit fires visible from the sea. Whatever Hanno was discovering for Carthage, these communities had been living, traveling, and trading along those coasts long before his ships arrived.
Why the voyage mattered in antiquity — and after
Even in the ancient world, Hanno the Navigator’s journey was treated as extraordinary. Herodotus referenced it. Aristotle’s school discussed it. Pliny the Elder cited it. The voyage became a kind of benchmark — proof that the Atlantic could be navigated, that Africa extended far to the south, and that organized expeditions could return with knowledge from places no chart had yet recorded.
The Periplus is also uniquely valuable because so little Punic literature survived. Carthage was destroyed by Rome in 146 B.C.E., and most of its written record was lost. This text — preserved only because someone made a Greek copy, which was later copied again in a medieval manuscript — is one of the very few Carthaginian first-person documents that exists anywhere. Carthaginian civilization shaped the western Mediterranean for centuries, yet its own voice is nearly entirely absent from the historical record. The Periplus is a rare exception.
The voyage also influenced later European exploration. When Portuguese navigators began systematically charting the West African coast in the 15th century C.E., they were aware of Hanno’s account. His journey had established, more than 1,900 years earlier, that the Atlantic coast of Africa could be followed southward — and that what lay beyond the Pillars of Hercules was not void but world.
Lasting impact
The practical consequences of Hanno’s expedition were immediate: Carthage extended its colonial network along the Moroccan coast and gained access to new trade resources, including gold, slaves, and animal skins brought from the interior by intermediary traders. The colonies he founded helped Carthage maintain its dominance over western Mediterranean and Atlantic trade routes for generations.
The longer legacy is harder to trace but no less real. The Periplus entered the canon of ancient geographic literature and helped establish the idea — radical at the time — that Africa was a continent of vast and navigable extent. That idea would be tested, contested, and ultimately confirmed over the following two millennia by sailors from many civilizations, including Arab, Swahili, and eventually European maritime cultures.
The waters off West Africa that Hanno’s fleet first entered into Mediterranean awareness are today among the most ecologically and economically significant in the world. The knowledge of those coastlines — built up slowly by Indigenous peoples, traders, and explorers across thousands of years — is the foundation everything else rests on.
Blindspots and limits
The Periplus is a document written by colonizers, filtered through translation, and shaped by political calculation. The peoples Hanno encountered are named only in Greek approximations, their cultures described through fear, curiosity, or contempt. The three individuals the text calls “Gorillas” — almost certainly not gorillas in the modern sense, and possibly people — were killed, skinned, and their hides brought back to Carthage as trophies. The voyage that produced one of antiquity’s great documents of exploration also produced one of its early records of violence against African people. The record of Hanno’s journey cannot be read straight.
Read more
For more on this story, see: World History Encyclopedia — Hanno, Carthaginian Explorer
For more from Good News for Humankind, see:
- Ghana creates a marine protected area at Cape Three Points
- Indigenous land rights recognized across 160 million hectares at COP30
- The Good News for Humankind archive on the ancient world
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