Anyone but God, my friend. Iron is a naturally occurring element, it is not synthetic (man made). No-one created it, it was just here, brought about by processes not yet discovered or understood by man.
actually considering that when the universe was first only made up of only hydrogen and helium iron is created in the universe by something (not someone). Im actually doing a project on this right now so ill get back to you once ive fidgured it out.... okay, so basically all the heavy elements like iron and nickel are created at the centers of suns and are spread out through supernovas. oh actually that might just be a theory so the first guy might have been right.
Iron Chef was created on 1993-10-10.
The Iron Mule was created on 1925-04-12.
The Iron Woman - film - was created on 1916-10-02.
Iron Cross - film - was created on 2009-12-15.
The Next Iron Chef was created on 2007-10-07.
My Iron Lung was created in 1993.
The Iron Star was created in 1930.
Iron Helix was created in 1993.
The Iron Tree was created in 2004.
Circle of Iron was created in 1978.
Iron Guard was created in 1927.
Ma'ale Iron was created in 1996.
An Iron Rose was created in 1998.
Atlas Iron was created in 2004.
Iron Warrior was created in 1987.
The Iron Woman was created in 1993.
Iron Steel was created in 2008.