considering the time spans and number of countries, that's not actually that bad. Sure, there have been many other less famous examples, but the thing is that hyperinflation and currency collapse is actually quite rare. A lot of bitcoin boosters seemed to be under the impression that it was both inevitable and frequent. Also, this list is strongly correlated with catastrophic economic/political problems, as opposed to countries that were rolling along just fine until a sudden monetary-policy mistake.
Financial losses and windfalls / catastrophes happen far more frequently than you'd expect.
Also, my list is subject to dnautic's memory bias. Those are the names that I remember. There are certainly more. There is no currency in the history of the world that has lasted forever.
The cruzeiro was replaced by the "cruzeiro real" literally "real cruzeiro", as a hack to recover from poor fiscal policy resulting in hyperinflation. The cruzeiro real was then replaced by the 'real'.
Imagine things getting so bad that the government decides to rebrand its old currency as 'fake'.
I don't think there is any meaningful dichotomy between "external" and "internal" anything with regard to a currency. If an "external" asteroid hits a country and destroys all the users of a given currency, it goes to zero, but that is a meaningful measure of the value of the "internal" exchanges that are going on as valued in that currency.
