For Europeans, the British system of weights and measures is almost an extremely anti-human conversion system.
But if there's something in Europe more preposterous than the British system of weights and measures, it must be the currency system of the German States.
If a merchant departs from Switzerland to do business in Berlin, he will pass through ten German States, exchanging ten different currencies and paying taxes ten times.
Although the frequency of paying taxes has reduced considerably after the establishment of the German Customs Union in Northern Germany, currency exchange has never been unified.
In these times, if you don't carry twenty to thirty kinds of currency with you, you'd be embarrassed to tell others you're doing business in Germany.
