Legitimate and counterfeit currency played a significant role in the Revolutionary War – either as a justification to start it or as part of a strategy to win it. However, to understand the economics of this time period, it is critical to know how colonial and counterfeit currency was produced, distributed, and utilized. To do this, new research at the University of Notre Dame will use historical data, the dates of production, and the composition of coins or the inks on paper currency to map out approximate geographic origins of the money, including counterfeit bills.