For a world that uses as much money in our day-to-day lives as we do, it is sometimes easy to overlook some of the more interesting aspects of currency and even the idea of currency itself. As our world has grown and developed over the thousands of years, so has our currency. Although paper money has been around for thousands of years (some of the earliest being found in China and written about by Marco Polo), some of the earliest forms of currency come in the form of shards of obsidian used in ancient Turkey as far back as 12,000 B.C.
Today's inforgraphic shows us some interesting facts about money that you may not have known before. For those that collect rare and old forms of currency, sometimes the rarity of the piece is just as important as the age, if not more so. One coin called the 1913 Liberty Head Nickel is worth $3.7 million because it was manufactured by a rogue mint employee who only made 5 coins.
For more intersting facts about money have a look at the infographic below. [Via]