About the book: year / Scientists believe that humanity has existed as a species for fifty thousand years. But our civilization is only ten to twelve thousand years old. Why is this so? What do we know about the life of ancient people without written evidence, only objects dug up by archaeologists? This book is about a modern man who finds himself in the Mesolithic era (15-6 thousand years BC). Will his knowledge and experience of his past life be able to help him in new, incredibly difficult conditions for survival??..