Answer:

ironage

Answer	Crossword Clue
IRONAGE	Early historical era
IRONAGE	It began in 2500 B.C.
IRONAGE	Primitive period

IRONAGE	Era in which alphabetic writing became widespread
IRONAGE	When bronze was replaced, historically
IRONAGE	It began in Europe around 1200 B.C.
IRONAGE	Period of metalwork advances
IRONAGE	When forging started
IRONAGE	Early metalworking period
IRONAGE	Period named for an element
IRONAGE	Historic toolmaking period

IRONAGE	It started around 1200 B.C.
IRONAGE	Period starting about 1400 B.C.
IRONAGE	Era after Bronze
IRONAGE	First millennium BC period
IRONAGE	Hard time?
IRONAGE	When forging began
IRONAGE	When tools became common
IRONAGE	Period marked by increased smelting

IRONAGE	Important time for forgers
IRONAGE	Period beginning in about 1000 B.C.
IRONAGE	Archaeological period
IRONAGE	About 1000 BC
IRONAGE	Implements epoch
IRONAGE	It ended in Britain with the Roman Conquest
IRONAGE	Period of human history that began about 3,000 years ago
IRONAGE	When it started, the world population was around 50 million

IRONAGE	When the Tollund man lived
IRONAGE	Next after the Bronze Age.
IRONAGE	A long time ago.
IRONAGE	Archaeological period.
IRONAGE	A step in human progress.
IRONAGE	A time in the history of mankind.
IRONAGE	Ancient epoch.
IRONAGE	From about 1000 B. C. to 100 A. D.

IRONAGE	It began about 1000 B. C. in Europe.
IRONAGE	Archeological epoch.
IRONAGE	1000 B. C. to 100 A. D.
IRONAGE	Period in history of man.
IRONAGE	Period in history.