“If you look at the history of bookkeeping, it goes back to the 1400s,” Daher said. “Probably the oldest written records were of transactions. Around 1400s, we invented double-entry bookkeeping, a system for how money moves into and out of various accounts of companies. That system, as articulated in 1400 in Venice, is basically still what people do in every American business today. You hire a bookkeeper or bookkeeping firm, you send them all your stuff and they track and produce the set of books. The way it’s done today is the same way it’s done in the 90s, the 40s.”

https://techcrunch.com/2018/03/14/pilot-raises-15m-to-bring-bookkeeping-into-the-modern-era/