Where did these out of place items come from? Would members of an advanced civilization, from say 10-15,000 years in the past, have simply stayed in one locale, or would they have moved out across the globe, taking their technology with them? Generally, we can suppose that the technology of highly advanced civilizations would tend to become widespread.
It follows in turn that we would expect to find evidence of their technology all over the planet. We will show many artifacts from antiquity which challenge our preconceptions about our predecessors' technology and level of scientific knowledge. Specializing in the ancient Sumerian culture, Sumer's advanced technology, and the evidence for ancient astronauts.