Nathan Mayer Rothschild probably died of staphylococcal or streptococcal septicaemia, either from the abscess or secondary contamination from the surgeon’s knife. Today that infection would almost certainly be cured with standard antibiotics.
No offence intended but wavefunction is very low-quality.
Bun has a really nice REPL, can recommend https://bun.com/docs/runtime/repl