The Poles call them “little stone cheeses.” The Germans prefer one long word that translates “small stone balls with a groove carved in them.” The come in many sizes, although most are smaller than large, and can be made from any of a list of kinds of stone. Archaeologists have found them from northern Italy to the Baltic, from Gaul to the western steppes in what is now Beylarus and Ukraine. They are all Late Bronze Age, thus far, and no one knew quite what they were for.
Then someone said, “What if they were weights fo some kind. Not loom weights, but measuring weights?” And someone else, four someones else actually, did a lot of careful tedious work weighing, measuring, and recording the little stone cheeses and running the data through computers. Lo and behold, they probably were weights. Prehistoric metrology for the win!
Doing business without standardized weights and measures is…a challenge. Ask any medieval or early modern merchant. A London pound and a Paris pound and a Florentine pound might be very different weights. Each town with an official market had its measures, some of which were metal bars posted on the wall of the customs/toll/market master’s building. Everyone had to measure his cloth or other goods against the town foot or ell, since it was different from the last place’s official measure.
The same was true in prehistory, once trade became common enough. Metal in particular, but other goods as well, had to be semi standardized in some way that was acceptable. It’s one of those things that we take for granted today, and I mentally slapped my forehead (not physically, since I had students doing work and didn’t want them to think I was criticizing a project or discussion) when I read the paper. Of course there were weights and measures. That a standard had developed, and become accepted, and spread so widely opened up all sorts of interesting possibilities. Why had developed it, and when? How had it spread, and how quickly? How long had the trade network lasted and the weight unit been accepted as the standard? Who made sure that everything was legal and enforced the rules and prices?
Barry Cunliffe pointed out in his book about trade and civilization in the steppes of Eurasia that once trade begins, it is remembered even after it is interrupted. Trade and exchange were more common than we used to think, and far more extensive. Finding places that didn’t trade is unusual, or means that what went back and forth was something not easily seen in archaeology – furs, bone, wood, textiles, dye-stuffs, hides, slaves, ivory. The absence of the usual bronze and other status goods in parts of the southeastern Baltic raises all sorts of questions about trade, social organization, and so on.
So the little stone cheeses are a symbol of a far more complicated world in northern Europe than most of us realize existed in 1500 BC/BCE or so.