[jhbadger]

VisiCalc, surely. Lotus 123, much like Excel, was just following in the footsteps of the original spreadsheet.

https://en.wikipedia.org/wiki/VisiCalc

[ngcc_hk]

This practical idea of spreadsheet has much more impact to society than many innovation. Nobel prize worthy.

[nickpsecurity]

The Nobel Prize dates and finances are probably each implemented in one, too.