The introduction of ironworking around 1100 B.C. brought it to an end
[DOC] [TLE] Chapter 5: The Age of Iron - MyGeologyPage [PAR] The carbon came from the fuel used in working the iron (the charcoal of the forge) 
and .... His account was written many centuries after the first introduction of iron 
into ... which were at their peak at the end of the Bronze Age, about 1300-1200 
BC.