^ How many of those medieval armored fellows are actually uniformed though? I didn't know that these countries were able to dress entire armies with these sets. Were they not usually the responsability of the individual knight (and thus subject to variation according to different smiths, and such factors)? Usually, if someone's a knight, affording a full plate armor would not be that big a challenge, and as such, would not be something supplied to them by their ruler - unlike actual uniforms, which *are* part of a prepared kit that everyone must wear (for free or paid for)
I'm not entirely sure how the Romans did it now, even less so since "the Romans" signify a time-span of several centuries, with different rulers and different customs coming and going. But they did for sure uniform a lot of their armors, and famously so their weapons - in particular their blades, which were strictly standardized and mass-produced.