3 ms·1799 originally, as a temporary tax to help pay for the Napoleonic Wars.by cmdkeen 8y ago1799 originally, as a temporary tax to help pay for the Napoleonic Wars.benj111 8y agoYes but that time it actually was introduced temporarily. The date I gave was when it was introduced permanently.arghwhat 8y agoNothing is more permanent than a temporary solution.