Guns, Germs & Steel

early wave that had colonized New Guinea from Asia by 40,000 years ago. Achmad's ancestors arrived in Java ultimately from the South China coast, around 4,000 years ago, completing the replacement there of people related to Wiwor's ancestors. Sauakari's ancestors reached New Guinea around 3,600 years ago, as part of that same wave from the South China coast, while Ping Wah's ancestors still occupy China.
The population movement that brought Achmad's and Sauakari's ancestors to Java and New Guinea, respectively, termed the Austronesian expansion, was among the biggest population movements of the last 6,000 years. One prong of it became the Polynesians, who populated the most remote islands of the Pacific and were the greatest seafarers among Neolithic peoples. Austronesian languages are spoken today as native languages over more than half of the globe's span, from Madagascar to Easter Island. In this book on human population movements since the end of the Ice Ages, the Austronesian expansion occupies a central place, as one of the most important phenomena to be explained. Why did Austronesian people, stemming ultimately from mainland China, colonize Java and the rest of Indonesia and replace the original inhabitants there, instead of Indonesians colonizing China and replacing the Chinese? Having occupied all of Indonesia, why were the Austronesians then unable to occupy more than a narrow coastal strip of the New Guinea lowlands, and why were they completely unable to displace Wiwor's people from the New Guinea highlands? How did the descendants of Chinese emigrants become transformed into Polynesians?
Today, the population of Java, most other Indonesian islands (except the easternmost ones), and the Philippines is rather homogeneous. In appearance and genes those islands' inhabitants are similar to South Chinese, and even more similar to tropical Southeast Asians, especially those of the Malay Peninsula. Their languages are equally homogeneous: while 374 languages are spoken in the Philippines and western and central Indonesia, all of them are closely related and fall within the same sub-subfamily (Western Malayo-Polynesian) of the Austronesian language family. Austronesian languages reached the Asian mainland on the Malay Peninsula and in small pockets in Vietnam and Cambodia, near the westernmost Indonesian islands of Sumatra and Borneo, but they occur nowhere else on the mainland (Figure 17.1). Some Austronesian words

SPEEDBOATTO POLYNESIA • 337
Distribution of Austronesian languages
Figure 17.1. The Austronesian language family consists of foursubfamilies, three of them confined to Taiwan and one (Malayo- Polynesian) widespread. The latter subfamily in turn consists of two sub- subfamilies, Western Malayo-Polynesian (= W M-P) and Central- Eastern Malayo-Polynesian (= C-E M-P). The latter sub-subfamily inturn consists of four sub-sub-subfamilies, the very widespread Oceanic one to the east and three others to the west in a much smallerarea comprising Halmahera, nearby islands of eastern Indonesia, andthe west end of New Guinea.
borrowed into English include 'taboo' and 'tattoo' (from a Polynesian language), 'boondocks' (from the Tagalog language of the Philippines), and 'amok,' 'batik,' and 'orangutan' (from Malay).
That genetic and linguistic uniformity of Indonesia and the Philippines is initially as surprising as is the predominant linguistic uniformity of China. The famous Java Homo erectus fossils prove that humans have occupied at least western Indonesia for a million years. That should have given ample time for humans to evolve genetic and linguistic diversity and tropical adaptations, such as dark skins like those of many other tropical peoples—but instead Indonesians and Filipinos have light skins.
It is also surprising that Indonesians and Filipinos are so similar to trop-

3 3 6 •GUNS,GERMS, AND STEEL
Pacific. Wiwor's Highlanders are probably descended from an early wave that had colonized New Guinea from Asia by 40,000 years ago. Achmad's ancestors arrived in Java ultimately from the South China coast, around 4,000 years ago, completing the replacement there of people related to Wiwor's ancestors. Sauakari's ancestors reached New Guinea around 3,600 years ago, as part of that same wave from the South China coast, while Ping Wah's ancestors still occupy China.
The population movement that brought Achmad's and Sauakari's ancestors to Java and New Guinea, respectively, termed the Austronesian expansion, was among the biggest population movements of the last 6,000 years. One prong of it became the Polynesians, who populated the most remote islands of the Pacific and were the greatest seafarers among Neolithic peoples. Austronesian languages are spoken today as native languages over more than half of the globe's span, from Madagascar to Easter Island. In this book on human population movements since the end of the Ice Ages, the Austronesian expansion occupies a central place, as one of the most important phenomena to be explained. Why did Austronesian people, stemming ultimately from mainland China, colonize Java and the rest of Indonesia and replace the original inhabitants there, instead of Indonesians colonizing China and replacing the Chinese? Having occupied all of Indonesia, why were the Austronesians then unable to occupy more than a narrow coastal strip of the New Guinea lowlands, and why were they completely unable to displace Wiwor's people from the New Guinea highlands? How did the descendants of Chinese emigrants become transformed into Polynesians?
ioday, the population of Java, most other Indonesian islands (except the easternmost ones), and the Philippines is rather homogeneous. In appearance and genes those islands' inhabitants are similar to South Chinese, and even more similar to tropical Southeast Asians, especially those of the Malay Peninsula. Their languages are equally homogeneous: while 374 languages are spoken in the Philippines and western and central Indonesia, all of them are closely related and fall within the same sub-subfamily (Western Malayo-Polynesian) of the Austronesian language family. Austronesian languages reached the Asian mainland on the Malay Peninsula and in small pockets in Vietnam and Cambodia, near the westernmost Indonesian islands of Sumatra and Borneo, but they occur nowhere else on the mainland (Figure 17.1). Some Austronesian words

SPEEDBOATTO POLYNESIA • 337
Distribution of Austronesian languages
Figure 17.1. The Austronesian language family consists of foursubfamilies, three of them confined to Taiwan and one (Malayo- Polynesian) widespread. The latter subfamily in turn consists of two sub- subfamilies, Western Malayo-Polynesian (= W M-P) and Central- Eastern Malayo-Polynesian (= C-E M-P). The latter sub-subfamily inturn consists of four sub-sub-subfamilies, the very widespread Oceanic one to the east and three others to the west in a much