The History of Currency Full Size Version Share | Have A Question About This Topic? Address Thank you! Oops! Test Your Investment Knowledge! How much do you know about investing? Take our quiz and find out instantly. First Name Last Name Email Address Thank you! Oops! Related Contents Keeping Up with the Joneses Lifestyle inflation can be the enemy of wealth building. What could happen if you invested instead of buying more stuff? The Half Million Dollar Baby The true cost of raising a child may be far more than you expect. Historical Inflation This calculator shows how inflation over the years has impacted purchasing power.