The next development was in 1000 BC,when China stared making bronze and copper cowrie shells. It wasn't long before the Chinese made round coins out of metal. The very first coins often had holes in them so thst people could pass a piece of string through them to keep them together. BY 500 BC meta coins had begun to appear in countries like Persia and Greece, and later in the Roman Empire. These were usually lumps of silver with the heads fo various gods and emperors stamped on them to show real.
A few hundred years later leather was used as money in China, and in 806 AD the first paper danknotes were produced by the Chinese.t was still many years before paper currency appeared in Europe.Three centuries passed it was used in all European countries.