Colin Renfrew, Professor of Archaeology
at the University of Southampton,
wrote an article
"Ancient Europe Is Older Than We Thought", in
National Geographic Magazine,
Nov. 1977, Vol. 152, No. 5, pp. 615 et seq.

Renfrew presents a succinct summary of the change of direction
which our study of ancient history should be taking.
In spite of the fact that he wrote in 1977,
most historical scholars have continued on their old errant  path.

Renfrew shows that the accepted chronology and framework
for ancient European history "has collapsed"
because of the results obtained by modern dendrochronology
(i.e. dating by tree rings) and radiocarbon dating.

European megaliths have been proven by modern methods
to be OLDER than the Pyramids of Egypt or Mesopotamian temples.

Renfrew points to dendrochronological work on bristlecone pine
done by Dr. C.W. Ferguson of the University of Arizona
and Hans E. Suess of the University of California at San Diego
who calibrated tree-ring charts to calendar dates,
setting back the dating of European megaliths by a 1000 years.

Similarly, Renfrew writes that copper tools in Europe
which had originally been dated by scholars to ca. 2300 BC
actually date back to ca. 3500 BC and as early as 4500 B.C.

Hence, our view of ancient history must be completely amended.
Of course, the scholars are reluctant to take the necessary steps.
It means admitting their whole chronology to be a house of cards.