Ich bin ein Pantzermacher frembd,
Ich mach die Stählen Pantzerhembd,
Auch Pantzer Ermel vnd Pantzerstrich,
Die man tregt, offen vnd heimlich,
Auch von Pantzer gut Stählen Krägn,
Ich kann auch Pantzer rollen und fegen,
Wo sie mit Rost anlauffen thon,
Midias Pantzermacher fieng an.
The last line translates as something like: "Midias, the mail-maker, invented this craft."
I was wondering where this tradtion comes from. I can't think of anything in the Roman texts suggesting that mail was anything but a Gallic invention.
The other possible origin of mail may have been Etruscan. We have an example hanging from the bottom of a cuirass that consists of long chains joined by a few cross links. It isn't mail, since it doesn't form a mesh, but it may be a precursor to mail.

