The absolute dating method first appeared in 1907 with Lord Rutherford and Professor Boltwood at Yale University, but wasn’t accepted until the 1950s.
The first method was based on radioactive elements whose property of decay occurs at a constant rate, known as the half-life of the isotope.
The half-life of C is approximately 5730 years, which is too short for this method to be used to date material millions of years old.
The isotope of Potassium-40, which has a half-life of 1.25 Billion years, can be used for such long measurements.
Organic materials, such as wood and bone, can easily be dated using radiocarbon techniques, but they aren't always available or reliable.
Wood tends to decompose over time, and animals often dig up bones and move them around a site.
Read More Egyptian kings and pharaohs conquered entire nations, but if a person stole so much as an animal hide he could be whipped with 100 lashes and stabbed five times in the back… The Russian RIA news agency has reported a remarkable find of an ancient Greek Corinthian helmet.
The discovery was made in the Taman Peninsula in the southwest of Russia.
The researchers have developed the first direct method for dating pottery by examining animal fats preserved inside the ceramic walls.The research builds on recent work that has shed light on the types and uses of commodities contained within the vessels. 30 edition of Analytical Chemistry, a peer-reviewed journal of the American Chemical Society, the world's largest scientific society.Pottery is essential for classifying archaeological sites.It is also important not to forget that throughout the history of humankind any discovery that shakes the status quo is always under attack until it becomes established, and we are in an era where many of the things that we once considered certain will become errors of our past.By John Black Dr John (Ioannis) Syrigos initially began writing on Ancient Origins under the pen name John Black.