Radiocarbon dating is especially good for determining the age of sites occupied within the last 26,000 years or so (but has the potential for sites over 50,000), can be used on carbon-based materials (organic or inorganic), and can be accurate to within ±30-50 years.
Probably the most important factor to consider when using radiocarbon dating is if external factors, whether through artificial contamination, animal disturbance, or human negligence, contributed to any errors in the determinations.
This measure can be used as an indicator of changing temperature and glacial ice over time.
There are two main trends: an overall decrease in temperature and a larger degree of climate fluctuation over time.
Darwin was remarkably prescient when he wrote, in 1871 "The Descent of Man", that humans had evolved in Africa and were closely related to the great apes (gorilla, chimpanzee, and orang-utan).
Hidden Transcripts and the Power of Reflection In Their Own Words: Protesters Gird for Long Fight over Opening Peru's Amazon Anthropology in Everyday Life: Human Terrain Teams and Anthropological Ethics Chapter 13: Where Do Our Relatives Come From and Why Do They Matter? Sexuality and Power Chapter 14: What Can Anthropology Tell Us about Social Inequality?Now we know, through a combination of new fossil finds and molecular biology, that humans and chimpanzees diverged as little as 7 million years ago, and that our own lineage is "bushy", with many different species in existence at the same time.Our view of our evolutionary past has changed as social attitudes have changed.The amount of variability in environmental conditions was greater in the later stages of human evolution than in the earlier stages.Ten-million-year record of oxygen stable isotopes, measured in foraminifera recovered from deep-sea sediment cores, illustrates that global ocean temperature and glacial ice varied widely over the past 6 million years, the period of human evolution.