gold. Now they did not come to harvest gold for wealth but because as there planet moved further and further away from the sun it became very cold. So they were going to turn the gold in to fine particles and put it into their ionosphere to insulate their planet. It is said the humans were used as slaves. But what is said to of happened was the beings interbred with us humans and created a hybrid race, which of course is us. I will say that the Sumerians new the Earth revolved around the sun.
Now I will not say I agree with this but what I will say is the evolution of the human race definitely did appear to take a leap both in technical ability and biological form. You see the thing is the theory of evolution is just that, a theory. When Darwin came up with this it was based on assumption. The assumption was the finding of what is known as the missing link. He believed it would be found in his lifetime…only it was not. Many species have been found that have been believed to be the missing link, but none have stood the test of time and others were just ridiculous. They had built a replica of a missing link all from a tooth. But it was later found out that the tooth was actually a pig of some sort. There was another that (possibly java man, cant remember off the top of my head) was built up because a human femer was found about a meter away from a skull that looked like a humanoid. They built this being up and hailed it as the missing link but it was later discovered that it was nothing more than a monkey skull near a human femer. There was another that they realised walked on all fours but had been standing in a museum for years…that was removed. The point is many things have been called the missing link but none of them