Could this be a 12,000 year old lost city under the ocean of Japan?

The human history of civilisation is an unusual one... unusual in the sense that we have not got a clue just how far back our civilisation stretches. Some of the earliest examples of human civilisation can be found in ancient Sumeria (Iraq), roughly 4400 year old.

However, deep below the waves of the Southern Islands of Japan, sits the site that has become known as the yonaguni monument, something which can be likened to sites such as Sacsayhuamán, in Peru (pictured above)

Since the 1980s, divers from all over the world have been visiting the site, although very few have an idea of just what thing is. It appears to be carved out of the solid bedrock on the Japanese sea floor, just around 10 meters deep. Many have claimed that nature is respensible for sculpting mesmerizing structure, but this seems highly unlikely given some of the angles and features that can be found.

Superb right angles can be found throughout, as well as large steps, and even two pillars. Whilst the layout may not make much logical sense in terms of construction, there is little doubt in my mind that the sea has erroded many of the features which once made up a highly remarkable and avanced site.
My personal best guess is that is was once a fort that overlooked the seas with high walls made for a strategic defence.

So how could something like this have been constructed? It is not like ancient people would have been able to dive beneath the oceans and carve this out of the rocks... the only logical explanation would be that this was created when the sea levels were much lower. This pushes the date in which the Yonaguni Monument was above the surface to an astonishing 10,000 BC! That means that it has been fighting a losing battle against the sea for 12,000 years, which has no doubt rendered this site totally unrecognizable compaired to what it would have looked like back in the day.

What makes this site somewhat hard to fit into our timeline, is the simple fact that human settlements in that area of Japan simply did not reach such levels of engineering and sophistication. Hunter gather societies were the only ones that were said to roam these Islands; non of which have been proven to have the structural know-how to sculpt such immense fortifications. This can only suggest that societies in and around this period were much more advanced than we previously realised. Perhaps there is a huge chapter in our history books that has been completely left out, just waiting to be filled.

So what are your thoughts? Do you have any theories as to what this site might be or who could have constructed it? Let me know guys, hope you enjoyed.