The gradual muslim conquest by the mughal empire.
Hmm good question your answer is no
The main impact was the wars impact
The reason that printing currency is a delegated power is because, our Nation needs to be able to trade among itself. If two states had different types of currency from one another it would make trade and travel between the states much more difficult as money from FL and NY would likely be different and likewise useless in each of the other states.
