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Is not possible to credit a single person or people for the discovery of Iron.

Iron is one of the most common and important elements on Earth, constitute about 5% to 7% of the Earth’s crust, and is present in almost all kinds of rocks.

In its native state, as a pure metal, iron can be found only in meteorites ‘cause usually iron is combined with oxygen atoms to form oxides

The first evidence of the use of iron, recovered from meteorites,  dates back approx  4000 years before Christ  when the Sumerians and Egyptians used Iron for small objects like spear points, and jewelry.

As with other periods of prehistory its chronological limits vary considerably, depending on the geographical and cultural factors; some civilizations have never known the Iron Age.

The Iron Age began around the twelfth century BC in the Mediterranean world and between the ninth and eighth centuries BC in northern Europe.

The age of iron originally defined a period in European prehistory and early history characterized by the use of iron metallurgy, particularly for the manufacture of weapons and tools.

The adoption of this new material often coincides with other changes in society, not excluding the different

agricultural practices, religious beliefs and artistic styles.

Iron is a metal extracted from ores, including hematite, magnetite, lemonade, and taconite, and almost never pure iron is found in nature (native) apart from iron recovered from meteorites.

Iron is used to produce steel, which is an alloy made of iron, carbon and other elements, cast iron, an alloy of iron with a carbon content  of 2- 4 %,  and stainless steel.

Industrially, iron is extracted from its ores, principally hematite (Fe2O3) and magnetite (Fe3O4) by reduction with carbon in a reduction furnace at temperatures of about 2000 ° C.

In a reduction furnace, the charge, a mixture of iron ore, carbon in the form of coke and limestone is put at the top of the furnace, while a stream of warm air is forced underneath.

 

source and more info:

 

 

ANCIENT METEORITES

 

http://www.chemistryexplained.com/elements/C-K/Iron.html

 

What did the ancient Egyptians refer to as "iron of heaven?"

 

http://mysite.du.edu/~jcalvert/phys/iron.htm

 

A Short History of Metals

 

http://education.jlab.org/itselemental/ele026.html

 

http://www.historyforkids.org/learn/science/mining/iron.htm