It looks like you're new here. If you want to get involved, click one of these buttons!
Lemuria has had an interesting ride over the past century.
In 1864, an English zoologist, Philip Lutley Sclater, wrote a scientific article about the hypothetical continent, "The Mammals of Madagascar" and named the land mass, "Lemuria." The hypothesis was intended to explain the distribution of lemurs and other plants and animals in the area of the Indian ocean.
The concept generated some interest for a bit, and Blavatsky was the first channel to latch onto the idea, and began elaborating on the inhabitants of the alleged continent, writing that they laid eggs and possessed a third eye. The Lemurians were considered the third root race.
When science later concluded that the idea of Lemuria was a physical impossibility and abandoned it in favor of plate tectonics, the psychics were apparently too committed to retract their channeling, and the theory has continued to morph till the present day.
Somewhere along the line Lemuria became interchangeable with the lost continent in the Pacific, Mu. Though, we now know how the idea of Lemuria actually originated.
Mu is also interesting. In the mid-1800s an amateur archaeologist, Augustus le Plongeon (1826-1908), badly translated a Mayan book, leading to his theory that the Maya of Yucatan were the ancestors of Egypt. He went on to believe that an ancient continent that was destroyed by a volcano, a land he called Mu, was synonymous with Atlantis. Experts in his day loudly debunked his amateur archaeology, and although his claims were proven to have zero credibility, the idea of Mu carried on in the minds of those with active imaginations.
Later, in the 1930s, James Churchward wrote a series of bizarre books about Mu, claiming it was the original Garden of Eden and that Atlantis was a colony of Mu. He also believed that all the major civilizations, such as Egypt, the Mayans, Babylonia, etc., were the remains of Mu. Nice theory, but he provided no real evidence for any of his claims.
It always strikes me how ethnocentric these theories are. People look at the ruins of advanced civilizations like Egypt or the Mayans, and instantly assume they must have had help -- the Egyptians helped the Mayans, and the Atlanteans helped the Egyptians. There's not a scrap of scientific evidence to support this kind of thinking (Egyptian and Mayan pyramids aren't anything alike, and served different purposes), but the ethnocentric assumptions remain.
Anyhow, the point I'm making is that although there's a body of channeled material about these lost civilizations, as you can see from their origin, it was all built on a shaky foundation of credibility. In fact, it was built on a foundation of bullshit.
That doesn't mean an ancient civilization didn't exist. The names Lemuria or Mu could simply be place holders for a civilization we don't have a name for. My mind is open to that. Although, there's no scientific evidence to back that up at the moment.
What hurts the cause, so to speak, are the crazy theories about some of our known ancient civilizations. Egypt has been a frequent target, with ethnocentric views that the Atlanteans built the pyramids in 10,000 BC, well before the timeline agreed by archaeologists. Once again, however, scientific evidence doesn't support those claims. There's ample evidence that says the pyramids were constructed close to the generally agreed upon timeline. Besides, if an advanced civilization did exist in Egypt around 10,000 BC, where are the artifacts and relics to support that? There is nothing. You can find ancient camps of hunter gatherer sites in the area, but not a single artifact to support the existence of an advanced civilization during that period.
Atlantis is the only lost civilization that has a paper trail, thanks to Plato. There's still question of what he wrote was really just a morality tale, but at least in history we have evidence that does support an Atlantis-like event, which is the volcanic destruction of the Minoan society. It doesn't line up perfectly, but it's more than we have for Lemuria or Mu.