Ancient Europeans wrote about Ages of Man:
http://en.wikipedia.org/wiki/Ages_of_Man
There are also many other references to various
types of world ages or Ages of Man in Hopi
(worlds), Mayan (suns) and other cultures of
antiquity. Giorgio de Santillana, the former
professsor of the history of science, mentions
approximately thirty ancient cultures that
believed in the concept of a series of ages and
the rise and fall of history, with alternating
Dark and Golden Ages.
Detailed information on the ages is found in the Hindu Yuga theory:
http://en.wikipedia.org/wiki/Saty_Yuga
http://en.wikipedia.org/wiki/Yuga
The Yuga theory states that evil goes through large cycles
of time. The present age is known as Kali Yuga (age of darkness).
Hindu astrogers wrote that the crime rate in the world will decrease
to 40% of its present world in about two decades from now.
"From 2010, winds of spiritualism will blow across the
entire world, awakening more and more people in its wake. Where limits
of (modern) science end, spiritualism begins. .... Along with scientific
progress, intellectuals will start recognizing the importance of
spiritualism. .... From 2050, a new era will begin...."
Swami Dattavadhut, Prophecies 1998 to 2100, Vanita Books, Mumbai, 1997, pp. 33-42.