Since gold coinage was first used, what percentage of empire’s or world reserve currencies lasted past 50 years after coming off the gold standard?

Each time it happened, what percentage of the next empire or world reserve currency started with a gold standard?

How many of them said “It’ll be different this time” when their economies where at the same point as ours?



“When debate is lost, slander becomes the tool of the loser.”
- Socrates