Noricum Authority in Federation from ~200 BC to 16 BC.
Noricum is the Latin name for a Celtic kingdom, or federation of tribes, that included most of modern Austria and part of Slovenia.

Noricum was a major provider of weaponry for the Roman armies from the mid-Republic onwards. Roman swords were made of the best-quality steel then available from this region, the chalybs Noricus. The strength of iron is determined by its carbon content. The wrought iron produced in the Greco-Roman world generally contained only minimal traces of carbon and was too soft for tools and weapons.

Noricum was incorporated into the Roman Empire in 16 BC. In the first century AD, it became a province of the Roman Empire.
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