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Travis's question got me to thinking that may be the relative infrequency of use of ironworking in the Old World was due to the fact that there was no easy availability of bog iron - which was one of the main sources of iron ore in middle ages.

However, upon looking, it seems that there were areas in modern USA territory that were very rich in bog iron.

Is there any research/writings explaining why bog iron smelting didn't get invented or at least widely used by the tribes in North America? Intuits/Escimos did use the meteorite iron, so it's not like there was no precedent; and I'm pretty sure that at least some tribes were at the development levels significantly exceeding that of Hittites (who were presumably the original inventors of iron working technology in the Old World).

Was it coal availability?

Easy availability of replacement materials making iron not needed?

Lack of settlement where bog iron areas were?

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(A good part of this answer is speculation.)

There were areas of the current U.S. with moderately stable, non-nomadic farming communities before Columbus. However, there were few, if any, large cities, the tribal governments were not very well organized, and the labor and economic systems were very weak and disorganized compared to Europe, Asia, and Africa.

This made it much more difficult to develop organized projects or industries that required a lot of labor, which resulted in less overall demand for iron and made it less likely for an iron industry to emerge. The small tribal governments also made large wars unlikely, which eliminated another source of demand for iron.

It seems likely that iron from meteorites or surface deposits was used in a limited way, but the knowledge probably didn't spread and most artifacts have likely long since rusted way.

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Because they never discovered the technique of iron making.

As you know, to make iron requires only the ore, clay, hides for the bellows and charcoal. All of these items are commonly found everywhere. Even very primitive African tribes used to make iron using these simple materials. It takes about a week of work by three or four men to make enough iron for an axe head using the most primitive methods. Of course, such an axe would be worth a fortune in pre-Columbian America.

Technology is an amazing thing. Once you know how to do something new, entire worlds open up.

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