How long do you think humanity has learned how to produce metal, create mechanisms, build communications, and write scientific papers? According to the majority of historians, a reasonable person (Homo sapiens) appeared in Africa about 200 thousand years ago, and the first technically developed civilizations and cities "with conveniences" appeared on Earth no earlier than VII millennium BC. However, studies of numerous artifacts that fall into the field of vision of archaeologists and anthropologists, literally overturn the mentioned borders of time, push them back to the past by tens and hundreds of thousands, and sometimes millions of years. We will tell you about the most famous "evidence". The spark plug of a very old car. Mike Mikesell, Wallace Lane, and Virginia Maxey are three young souvenir and jewelry store owners in Olancha, California, USA. On February 13, 1961, they went to the plateau near Lake Owens in search of tingles - isolated crystalline inclusions in the rocks, of