Norris said «These hyperthermals seem not to have been rare events, hence there are lots of
ancient examples of global warming on a scale broadly like the expected future warming.
Some of these are surprises, but McDermott makes a compelling circumstantial case for his
more ancient examples, and actually attributes to Demosthenes a different kind of speech impediment altogether.
The
most ancient example of shell jewellery is 82,000 years old and was found in Morocco, although some shell art may date even further back.
It is
an ancient example of the moment when an object, such as a branch or bone, ceases to be what it inherently is and becomes an instrument with transformed meaning and purpose.