Mysterious certificates on meetings with alien civilizations on Earth

Ancient legends and the myths left in archeology, testify that Earth was visited by representatives of other worlds. Unambiguity of many of them was given more than once by ufologists as argument. For example, the early Christian apocryphal literature known "Enoch's Book", tells about classification of stars and spaceships, about attires of space newcomers and devices which "angels" used. Enoch for the first time in the history told about contacts with representatives of other worlds. It gave the description of to whom it came into contact, and visited space station. He wrote: "Also it happened after...