The Amazon, a Man-Made River?

This seems far-fetched now but there was flooding that created the Amazon. This was caused by artificial means. Man doesn’t know this, but the Amazon was created by explosions and other devices, and so forth. The flood passed over civilizations and there are artifacts there. There is technology that can help man there. There should be funding for an expedition to assist in finding some of the more advanced technology from a civilization that was allied with Atlantis, but not Atlantis.
There were many small civilizations, not just Lemuria and Atlantis. Do not think in these terms. Think of many small pockets of different peoples from the five major alien groups, and in fact from some other realms and spheres that attempted to propogate on the earth. God Bless.