Polynesian archeology carbon dating
However, as we shall see, for virtually any X, every year brings forth new discoveries and claims of a purported still earlier X, along with refutations of some or all of previous years' claims of earlier X.
It often takes decades of searching before archaeologists reach a consensus on such questions.
Their confinement to Africa, along with abundant fossil evidence, indicates that the earliest stages of human evolution were also played out in Africa.
Human history, as something separate from the history of animals, began there about 7 million years ago (estimates range from 5 to 9 million years ago).
C.(*) This date corresponds approximately to the beginnings of village life in a few parts of the world, the first undisputed peopling of the Americas, the end of the Pleistocene Era and last Ice Age, and the start of what geologists term the Recent Era.
Stone tools became common around 2.5 million years ago, but they were merely the crudest of flaked or battered stones.
Fossils indicate that the evolutionary line leading to us had achieved a substantially upright posture by around 4 million years ago, then began to increase in body size and in relative brain size around 2.5 million years ago.
Those protohumans are generally known as Australopithecus africanus, Homo habilis, and Homo erectus, which apparently evolved into each other in that sequence.
Lays a foundation for understanding human history." Bill Gates In this "artful, informative, and delightful" (William H.
Mc Neill, New York Review of Books) book, Jared Diamond convincingly argues that geographical and environmental factors shaped the modern world.