Actually all the euro area currencies that were removed from circulation in exchange for euros; franc, deutchmark, lira etc. did not fail at all. Thus, not eve

Actually all the euro area currencies that were removed from circulation in exchange for euros; franc, deutchmark, lira etc. did not fail at all. Thus, not every currency has failed, although it could be argued that they still exist in a 'shadow' form, thus have not yet existed to the end of the infinite timeline. Either way every failed currency has indeed failed, thus every currency in the future that fails will also be considered to be a failure, maintaining the 100% record for failure.