I was surprised, when I found out, how comparable many of those relics are. Many countries had a variation on a pint, a pound etc, that were in the same ballpar

I was surprised, when I found out, how comparable many of those relics are. Many countries had a variation on a pint, a pound etc, that were in the same ballpark but never quite the same. I'd always presumed pre-metric Europe would have much wider variation in units. Maybe they stem back to the Romans, like £sd did. You'd be surprised on milk - I'd say the commonest supermarket sizes are still really pints. Usually 2.272l (4.0 pints), and 2 and 6 pint equivalents. Posh variants like some organic, filtered etc are in 2.0 litre packs - mostly opaque so you don't notice the 4 pint capable pack with lower fill level. :) Shoe sizes are infuriating. Would be nice to find a way to standardise, and have manufacturers agree on what size x means, as they've diverged wildly from reality.