> It's ultimately up to us to decide how to project our relatively young calendar system way back into the past before it was invented. Year zero makes everythi

> It's ultimately up to us to decide how to project our relatively young calendar system way back into the past before it was invented. Year zero makes everything nice. Be like astronomers and be like ISO. Choose year zero. Or, just to add more fuel to the fire, we could use the Holocene/Human year numbering system to have a year zero and avoid any ambiguity between Gregorian and ISO dates. https://en.wikipedia.org/wiki/Holocene_calendar https://en.wikipedia.org/wiki/Holocene_calendar