It was popularly referred to as "the missing link" in human evolution.
In This was verified through the use of X-ray fluorescence examination.
It had been cleverly carved to fit the skull and stained to look ancient.
These processes result in All of these processes confuse the stratigraphic record.
In many cases, however, it is possible to reconstruct the original sequence of strata so that they can be used for relative dating.
That man was a medical doctor by training and therefore had the necessary skills to carry off the hoax.
He was Sir Arthur Conan Doyle, the author of the Sherlock Holmes detective stories.
We will never know whether he was really the perpetrator, but he is now the leading candidate.