The story of Nan Madol is one of both remarkable human history and enduring local myth, with the two inextricably intertwined in the cultural memory of Pohnpei.
The Myth of Origin: The Twin Sorcerers
According to Pohnpeian legend, the city’s creation begins not with mortal engineering, but with powerful magic. Two brothers, the sorcerers Olisihpa and Olosohpa, arrived in a large canoe from the mythical Western Katau (or Kanamwayso), seeking a place to build an altar to worship the god of agriculture, Nahnisohn Sahpw.
After several unsuccessful attempts to build on the main island, they found the perfect location on the coral reef flats off the shore of Temwen Island. HerThe tale of Nan Madol blends extraordinary human accomplishment with enduring island legend, the two inseparable in Pohnpei’s collective memory. Its past is shaped as much by myth as by history, each reinforcing the other. The Myth of Origin: The Twin Sorcerers In Pohnpeian tradition, Nan Madol did not arise through ordinary human effort, but through supernatural power. The story begins with two sorcerer brothers, Olisihpa and Olosohpa, who sailed in a great canoe from the mythical western land of Katau (also known as Kanamwayso). Their goal was to build an altar to honor Nahnisohn Sahpw, the god of agriculture. After failing to construct the altar on the main island, the brothers discovered an ideal site, the legend says, the brothers used their sorcery and the aid of a flying dragon to levitate the massive basalt columns into place. These stones, some weighing up to 50 tons, moved as if by “ghost hands” across the water and air.
Once the structures were built, Olisihpa died, and Olosohpa became the first ruler of the Saudeleur dynasty, marrying a local woman and establishing a lineage that would rule Pohnpei for centuries.
The Historical Dynasty: The Saudeleurs
Archaeological evidence supports the establishment of the Saudeleur dynasty and the subsequent construction of the megalithic city.
- Early Settlement: Human activity on Pohnpei dates back to the first or second century CE, with early artificial islets appearing around the 8th or 9th century CE.
- Megalithic Construction: The peak of the monumental building occurred between 1200 and 1600 CE. Nan Madol became the centralized political and ceremonial capital of the island’s 25,000 inhabitants.
- A City of Power and Control: The city was designed to isolate the ruling elite from the common people. The rulers, initially seen as benevolent, grew increasingly oppressive over time, forcing local chieftains to live in the city where they could be watched and demanding constant tribute of food and supplies from the main island.
- A Feat of Engineering: The construction involved quarrying hundreds of thousands of tons of naturally occurring columnar basalt from a volcanic plug miles away on the main island. These “logs” were then transported—likely via bamboo rafts—and meticulously stacked in a log-cabin style without mortar, a monumental feat of logistics and engineering that still baffles modern experts.
The Fall and the “City of Ghosts”
The Saudeleur dynasty’s tyrannical rule led to its downfall. A warrior-hero named Isokelekel, often described in oral histories as a demigod or foreign invader from Kosrae, arrived with a war party. Aided by the oppressed Pohnpeian populace, Isokelekel defeated the last Saudeleur ruler, who, in some legends, retreated up a stream and transformed into a fish.
Isokelekel established a new, more decentralized system of rule, and while he resided briefly in Nan Madol, his successors soon abandoned the logistically challenging city, moving back to their own districts.
Over time, the grand capital became a silent ruin, reclaimed by mangrove roots and silt. The legends and the sheer mystery of its construction contributed to its nickname, the “City of Ghosts,” a place where ancient spirits and the memory of a lost civilization still linger in the spaces between the colossal stone walls.
Nan Madol is a site steeped in both enduring mysteries that baffle modern science and rich local legends that offer supernatural explanations for the inexplicable.
Key Mysteries
Construction Methods: The primary mystery is how the Pohnpeians, without the use of pulleys, levers, or metal tools, managed to transport and precisely stack massive basalt columns, some weighing up to 50 tons, to create a city on a remote coral reef.
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- Transportation: The nearest quarry site is miles away, across rugged terrain and open water. A 1995 Discovery Channel documentary attempt to float a one-ton stone by raft failed, deepening the puzzle of how larger stones were moved.
- Lifting: How the multi-ton stones were hoisted up to build walls as high as 25 feet remains an engineering enigma.
- Purpose and Abandonment: While historians know it was the ceremonial and political center of the Saudeleur dynasty, questions remain about the exact purpose of every one of the 90+ islets, as some had very specific functions (e.g., food prep, canoe making). The exact reason for its ultimate abandonment around the 18th century is also unclear, with theories ranging from a typhoon to disease or the logistical difficulties of living in a city with no fresh water or internal food source.
- Submerged Structures: Some researchers have speculated about parts of the city being older, built during a time of lower sea levels, or even the remnants of a sunken continent. However, subsequent underwater archaeological surveys have determined that most submerged “structures” are natural coral formations, not man-made structures.
Key Legends
- The Twin Sorcerers: The most prominent local legend attributes the city’s construction to two brothers, Olisihpa and Olosohpa, powerful sorcerers who arrived by canoe from a mythical land to build an altar for the agriculture god. They used their magic and the help of a flying dragon to levitate the huge stones into place.
- The City of Ghosts: Many modern Pohnpeians view the ruins with a sense of fear and superstition, referring to Nan Madol as the “City of Ghosts” and believing the site is inhabited by the spirits of dead kings and powerful rulers with supernatural abilities. Disturbing the site is believed to bring a curse or bad luck.
- The Curse of Governor Berg: This legend tells of a German governor in the early 20th century, Victor Berg, who disregarded a royal ban and opened a sealed tomb on Nan Madol, reportedly finding the skeletal remains of giants. That night, a wild storm arose, and Berg died the next morning, a death locals attributed to a curse from the gods for his disrespect.
- Giants and Lost Continents: Some fringe theories and popular culture interpretations have connected the massive scale of the architecture to a lost continent like Mu or Lemuria, or even extraterrestrial intervention, though these claims lack scientific evidence.
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