Guns, Germs, And Steel

　　I came across an interesting book which was one of the best sellers 20 years ago. Someone on a T.V. show talked about it and his story attracted my curiosity. That's why I rented the book. A New Guinean apparently asked the author by the name of Jared Diamond some time in the 1970s. "Why do you whites have everything, whereas we don't have anything?" The author was an anthropologist who was doing his fieldwork in New Guinea. He had a variety of research tools and modern technology for his work. When the New Guinean looked at the author's possessions, he uttered this. It's only the difference between developed and developing countries. This idea promptly came up with me, but carefully considering what he said, I understood I was really shallow-minded.
　　Human beings are said to have emerged on the African continent five to nine million years ago and then spread around the world by about 11000 years B.C.. If that's the case, people in Africa would have gotten an overwhelmingly longer history than people who moved to other continents and African people should have the most developed technology now. That's not true, however, as you know. Thinking this way, the question from the New Guinean began to make sense. I've just read a fourth of the book, but it is stirring my curiosity much more now.
　　In its preface, an interesting historical fact was laid out. A part of Maori people who had lived on the North island of New Zealand moved to the Chatham Islands, southeast of New Zealand. About 500 years after their movement, two peoples on both islands became unfamiliar with each other. People on the Chatham Islands are called Moriori and they loved peace and thoroughly avoided conflicts. A sailor who had stopped by the Chatham Islands informed the Maori people of Mariori on the Chatham Islands some time in the 19th century. Hearing the news, Maori people rushed to the Chatham Islands and peaceful Moriori people were slaughtered by them. These two kinds of people were genetically the same, though the nature of both peoples are completely opposite. What factors produced the difference between these two peoples? I wonder how the story will develop in the book.