Gold was a currency. It evolved from rocks in the dirt, to gold coinage, to paper coupons, to whatever the hell instrument it is today.
You stored your gold in a bank, and the bank gave you paper coupons to redeem it. People traded the coupons because it was easier than trading the gold. This is the birth of modern day banking.
You stored your gold in a bank, and the bank gave you paper coupons to redeem it. People traded the coupons because it was easier than trading the gold. This is the birth of modern day banking.