The reconstruction of a historical artefact is typically a project, that is easily affected by our modern cultural norms and standards. Standards, that we are often blisfully unaware of. Sadly, having such standards and norms makes us easily blind to the wider world and makes us less than objective about reality.
As my example I have chosen a silly little mistake, that I see all too often and probably (hopefully) I am the only person (or one among a very small minority) who is even irritated by such. I guess, there are far more people who get irritated even by my calling this out as a mistake and I would first like to appologize to people who might get offended by me revealing their misunderstanding. In my experience people are more likely to get agitated by their mistakes being pointed out, than they are happy, that they get a chance to repair any such mistakes they might have otherwise overlooked. Why is that?
Anyway, the waistline, especially the concept of male waistline has changed according to fashion lately, but long enough time ago for us to have become unaware of this radical change. It shows us, how what we may easily percieve as conservative, may actually be quite modern and how often we are blind to the changes in our culture. One of the most radical changes on thinking on what is proper attire for men has happened after the industrial clothing markets have totally taken over with their ready made garments. That change has really pulled the pants down for men. Up until the mid 20th century male waistline was typically considered to be at the level of the navel. At the point where the human body twists the most – largely because of this and because that is where a healthy human individual (healthy enough to do close combat with spear and shield, at least) is the most narrow, so it is only natural to tighten the belt there. Yes, men just like women are at their narrowest at the navel, not at the hips, where the waistline in western culture today is percieved and where fashionable pants today reach. But I am actually pulling far back in time when the westerners did not even use pants yet.
I have seen several attempts to recreate medieval armour and (as in my example) armour from antiquity, in wich the modern reconstructionist makes ridiculously large chest piece, to fit the armour to reach all the way down to the modern low waistline. This causes the armour to not turn with the body easily, along the shoulder line, but causes an irritating at best, restricting at worst twist because it now both hangs from the shoulders, but also rests on the hip. One person who had made this mistake, described it themselves as “chafing on their nipples”, or something to that effect.
I could post several pictures, that people themselves have published, in wich they wear a ludicurously tall chest piece, but because my point is not to shame any individual who has made a common (as is my case) mistake, I shall not. If you are interrested, and do not recognize what I am talking about, I recommend you make a search for this and I promise you shall find plenty of examples of both reconstructions fitting the mistake I call out here, and of very good reconstructions, that have not made this error.
In any case, even if my example was hypothetical and nobody had made the particular mistake I present as an example, I hope you get my meaning. Further more, I do not believe in presenting the wrong example, but presenting the right example and especially in historical research a good source material of the orginal, as the better pedagogical example.
The picture below is from a Greek vase from the antiquity and it shows us how the so called linothorax armour plate is worn. Now, one could make the mistake to think that the waistline of this armour is lower than the navel, because of how it is painted here, and that is part of the problem. Our sources are not always accurate, or so obvious to us, that they would set us straight from our own cultural assumptions and biases. Yet, if we examine the picture closely, we see that the crotch of the man in the picture is just a bit lower than where the pteruges (the flaps hanging from the edge of his chest armour) even reach. If we compare them to the width of his hand, we are perfectly justified in thinking that the pteruges must be at least two widths of hand long. Even given the fact, that the hand width is not an accurate measurement, this leaves very little for us to assume otherwise, than that the lower edge of his chest piece is at the level of his navel and it is certainly not resting on his hip. This will not only allow a greater freedom of movement and wearer comfortability. It also explains why there are only two connection points to close the armour (not only in this particular picture, but uniformly nearly all pictures of such an armour), as if the chest piece was any taller, the twisting motion at the level of the navel would open it when the wearer made any radical movements. That would hardly be very convinient in a battle?
Once more, this is just an example of how easily we jump to conclusions about cultural concepts foreign to us, even in seemingly trivial things. In this case the false notion of historical concept of waistline based on modern fashion, makes the armour reconstruction next to unusable and certainly paints a picture of the ancient people having been idiots for using such clumsy military gear for generations after generations. Think about how a more taboo concept may make us see a foreign culture, we come to contact today, in a completely false and twisted light. This is the very same point, where our ignorance, preassumptions and biases makes some of us see all Muslims as potential terrorists.