Columbia subject headings:
Europe, Western--Civilization.
Europe--Civilization.
Human beings--Origin.
Prehistoric peoples--Europe.
Harvard subject headings:
Civilization--History
Europe--Civilization--History.
Europe--Civilization.
Europe--History.
Human beings--Origin
Prehistoric peoples--Europe
Princeton subject headings:
Europe--Civilization.
Europe--History.
Human beings--Origin.
Prehistoric peoples--Europe.