Recorded history only goes back around 5,000 years, but humans have been around for 200,000 years. Could there have been highly sophisticated ancient societies of which no trace remains?
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**There is evidence that there was a global civilization**. The ancient stonework on *every continent* is in most cases made from **Geopolymere**. basically a concrete-putty that is better than modern concrete and noone know how to make it today.
If you google **polygonal masonry**, you will find literally hundreds of youtubers piecing all the data together.
If you sift through enough of the pictures people are compiling, you can even estimate which cultures did it first because you can see the quality and application of the geopolymere improve. For example, at the Acropolys in Greece, and some locations in Japan, their techniques seem to be a little more crude, then you go to [Cuzco](https://www.ecosia.org/images?q=geopolymere%20cuzco) in Peru and their stonework is jaw dropping and incomprehensible to any modern mason or engineer.
To any naysayers, feel free to speak your piece, but I have visited sites on all but one continent and have the picture evidence personally, and if anecdotes are not enough, look through the metric ton of content that people are piecing together. There is no point to argue against literal rock solid evidence.
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