Radiocarbon dating worked example

10-Aug-2017 20:40

The archeological record encompasses every area of the world that has ever been occupied by humans, as well as all of the material remains contained in those areas.Archaeologists study the archaeological record through field surveys and excavations and through the laboratory study of collected materials.Archaeologists have also recorded how primitive forms of humans spread out of Africa into Asia about 1.8 million years ago, then into Europe about 900,000 years ago.The first physically modern humans, Homo sapiens sapiens, appeared in tropical Africa between 200,000 and 150,000 years agodates determined by molecular biologists and archaeologists working together.Archaeologists have documented that the development of agriculture took place about 10,000 years ago.Early domesticationthe planting and harvesting of plants and the breeding and herding of animalsis evident in such places as the ancient settlement of Jericho in Jordan and in Tehuacn Valley in Mexico.

At that time, most archaeological work was confined to Europe, to the so-called cradle of civilization in southwestern Asia, and to a few areas of the Americas.Archaeology also examines many of the same topics explored by historians.