What is the greatest achievement for mankind?
This is a values based question and since human history has not
ended it is not possible to answer it other than to state: it is
still coming. The number of critical problems facing humanity in
the first half of this century (overpopulation leading to energy,
food, and mineral and water scarcity, threat of disease pandemic
and resulting global violence) may well prove an opportunity for
humanity to produce a solution which may well be considered the
greatest achievement for mankind. A solution is possible, humans
just need the will to pursue it.