The US government has been around for quite some time. The British pound, longer. It will take hundreds of years to compare to that level of resiliency.
The British government has completed repayments on historically held debt which dates back to the 18th century[1] as recently as 2015 (they were related to the South Sea Bubble).
That's a 162 contiguous years of financial records.
That's a 162 contiguous years of financial records.
[1] https://www.gov.uk/government/news/repayment-of-26-billion-h...