what is the oldest structure on earth
The last time this area would have been dry land was eight to ten thousand years ago, during the most recent ice ageâand so if Yonaguni really was constructed by humans, it would be one of the oldest structures on Earth, and would drastically change what we think we know of prehistory.
More than 100,000 years ago, early humans built a stone calendar that predates all other man-made structures found to date. This discovery is so astounding that it requires a true paradigm shift in our approach to ancient human activity, as it takes us closer to the emergence of the earliest humans on planet Earth.