Found it.

Looks like Madison enjoyed using commas, relevant quote from the original letter reads “…new example, will succeed, as every…”

Spelling and punctuation didn’t really get standardized into their modern form until the 19 th century.

Idk, I got that from a transcription of a letter. All but one of the commas look appropriate to me, and even that one looks appropriate if it’s thought of as a spoken declaration.

I’m interested though, I’ll try to find out