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.
The Iron Mule was created on 1925-04-12.
Iron Chef was created on 1993-10-10.
Tele-Nugar Iron Mines was created in 1911.
Iron Cross - film - was created on 2009-12-15.
The Iron Woman - film - was created on 1916-10-02.
Big Iron was created in 1959.
These Iron Bones was created in 2007.
Iron Will was created on 1994-01-14.
The Iron Shroud was created in 1830.
Iron Wolf was created in 1990.
The Iron Mistress was created in 1952.
The Iron Tooth was created in 2011.
Iron Seed was created in 1994.
Iron Lad was created in 2005.
Iron Aces was created in 2000.
Iron Dawn was created in 1998.
Iron Lord was created in 1989.