In 1864, a London zoologist invented a continent to explain the presence of lemurs in Madagascar. One hundred and sixty years later, this continent named Lemuria still occupies the esoteric shelves of bookstores, alongside Mu, its cousin from the Pacific.
Meanwhile, geology has discovered a real sunken continent, Zealandia. It resembles neither of the two myths.
We have started the story from the beginning: who invented what, what science says today, and what you can actually go see while diving. If it was Plato who brought you here, our dossier on Atlantis, between myth, research, and dives does the same sorting. And for pure fiction, the city of R’lyeh imagined by Lovecraft at least admits to being one.
Where does the name Lemuria come from?
Lemuria was born from a zoological problem. In 1864, the British Philip Lutley Sclater published “The Mammals of Madagascar” in The Quarterly Journal of Science. He sought to understand why certain mammals in Madagascar have relatives in India and proposed that a large continent, now disappeared, once connected these lands.
The name comes from the lemurs.
At the time, the idea was not extravagant. Naturalists were unaware that continents move, and sunken land bridges served as a convenient explanation whenever the same family of animals appeared on both sides of an ocean or strait. The German biologist Ernst Haeckel took up the hypothesis and made Lemuria the possible cradle of humanity. Then theosophy seized it. In The Secret Doctrine, in 1888, Helena Blavatsky placed a “third root race” of primitive beings there, long before Atlantis. But at this stage, no observation supported the story.
Later, Tamil authors linked Lemuria to Kumari Kandam, a sunken land mentioned in ancient Tamil literature. The word thus traveled far from the scholarly circles that had coined it.
How did Mu arise from a translation error?
Mu emerged from a faulty reading of a Mayan manuscript. In 1864, Abbé Charles Étienne Brasseur de Bourbourg believed he read in the Troano codex, now called the Madrid codex, the story of a land destroyed by a great natural catastrophe. Augustus Le Plongeon took up the name, and then James Churchward placed Mu in the Pacific starting in 1926.
| Date | Author | What they claimed | What we know today |
|---|---|---|---|
| 1864 | Philip Lutley Sclater | A continent connects Madagascar to India | Replaced by continental drift and dispersal by vegetation rafts |
| 1864 | Charles Étienne Brasseur de Bourbourg | The Troano codex tells of a sunken land | Misreading, Mayan script was not deciphered |
| 1888 | Helena Blavatsky | Lemuria, homeland of a “third root race” | Esoteric doctrine, no data |
| Late 19th century | Augustus Le Plongeon | Reused the name Mu after his work on the Mayan ruins of Yucatán | Interpretation abandoned |
| 1926 | James Churchward | Mu, Pacific continent submerged about 12,000 years ago | No geological or archaeological evidence |
| 2017 | Nick Mortimer and coauthors | Zealandia, 4.9 million km² submerged about 94% | Recognized continent, no trace of civilization |
Churchward cites no verifiable sources. He claims Mu had 64 million inhabitants and seven large cities before sinking about 12,000 years ago. His books sold well. The Children of Mu came out in 1931, The Sacred Symbols of Mu in 1933, and the series has fueled novels, video games, and forums for a century. Yet none of these titles is based on an excavation, dating, or published core sample.
In short, a reading error turned bestseller.
Sunken lands filled stories long before Churchward, from Greek marine deities to mythological deep-sea creatures. The Pacific and Indian Oceans have their own myths of submersion, and every sea god has a wrath that swallows an island. These myths did not wait for the theosophists.
Why does geology exclude a sunken continent?
Because a continent does not sink like a ship. Continental crust is lighter than oceanic crust; it floats in a way on the mantle. For Lemuria or Mu to disappear in a few thousand years, there would need to be a mechanism that no one has ever observed, and that would leave traces on all the neighboring seabeds.
Thus, the mystery of the lemurians found another answer. In 2010, Jason Ali and Matthew Huber modeled in the journal Nature the currents of the Indian Ocean during the Paleogene. Their result shows surface currents that then carried eastward, from northern Mozambique and Tanzania to Madagascar. Animals stranded on rafts of vegetation could have made the crossing. These currents then reversed as Madagascar moved northward, which would explain why no new terrestrial mammal reached the island after the beginning of the Miocene.
The leaf raft replaced the continent.
And seabed maps, increasingly detailed thanks to multibeam echo sounders, show ridges, plateaus, and extinct volcanoes. Nothing resembling a city. When a shape too regular appears on a survey, it almost always ends up in forums before reaching a geologist (and the correction circulates much more slowly than the image).
Zealandia, is it Mu rediscovered?
No. Zealandia is a continent described in 2017 in the journal GSA Today by geologist Nick Mortimer and ten co-authors: 4.9 million km², submerged about 94%. Only New Zealand and New Caledonia emerge from it. It gradually sank, tens of millions of years before the first human walked the Earth.
The criteria retained by geologists are measurable. The area is higher than the surrounding oceanic crust. There are silica-rich rocks like granite, schist, or gneiss. Its crust measures 10 to 30 km thick, compared to about 7 km for ordinary oceanic crust. However, nothing in this data speaks of civilization.
Its thinning dates from the Late Cretaceous, between about 105 and 85 million years ago, before the breakup of the supercontinent Gondwana, and it is this slow stretching that caused it to sink below sea level.
The pages presenting Zealandia as proof of Mu therefore make a huge shortcut. The dates do not match.
Can one dive on the traces of Lemuria or Mu?
No dive site shows remains attributable to Lemuria or Mu, and no scientific team has published any. If an excursion is sold under this name, you pay for a story. Dives that truly intersect archaeology are on documented sunken cities, each with its own access rules.
Our dossier on sunken cities you can actually dive details Baiae or Pavlopetri, with the required supervision and authorizations.
The case of Yonaguni, in Japan, comes up often. These sandstone terraces were spotted in 1986 by diver Kihachiro Aratake. Some see a carved monument there, many geologists a rock that fractures along regular planes. The site is not recognized as a cultural property by Japan. Yet operators on the island sell it as a “monument,” in an area where currents can be strong and where the required level is set by each center.
The current decides more than the legend.
Before booking an outing sold with a scent of lost continent, ask for the depth, usual current, required level, and backup dive if the sea closes the site. Without these answers, you risk paying for a half-day boat trip for a story.
FAQ
Did Lemuria really exist?
No. The name was proposed in 1864 by zoologist Philip Lutley Sclater to explain the distribution of lemurs. Plate tectonics and animal dispersal by rafts of vegetation have rendered the hypothesis unnecessary, and no seabed data supports it.
What is the difference between Lemuria and Mu?
Lemuria originates from a zoological hypothesis located in the Indian Ocean, later adopted by theosophy. Mu comes from a misreading of a Mayan codex in 1864, then from the books of James Churchward starting in 1926, which place it in the Pacific. Neither has a geological basis.
Is Zealandia a sunken continent?
Yes. According to the article published in 2017 in GSA Today, Zealandia covers 4.9 million km² and is submerged about 94%. It sank tens of millions of years before the appearance of humans and shows no trace of civilization.
Can Mu’s remains be seen while diving at Yonaguni?
No link between Yonaguni and Mu has been demonstrated, and the human origin of the terraces remains disputed by many geologists. The site is dived with island centers. The required level and current conditions are set by the center during the briefing.
Sources
- Zealandia: Earth’s Hidden Continent (Mortimer et al., GSA Today, Geological Society of America, 2017)
- Mammalian biodiversity on Madagascar controlled by ocean currents (Ali and Huber, Nature, 2010)
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