Earlier quoted context omitted.
Best estimate, until the next archaeological discovery. As long as we don't equate estimates with facts, we're good.
The column next to that date notes that there is village structure dated to the 9th century BC; the 753 date is actually downright mythical rather than archeological, but where some mythical dates exaggerate antiquity (e.g. lists of Sumerian kings) this mythical date cuts antiquity short to give city founding credit to the (probably entirely mythical?) Romulus rather than give recognition to the prior Greek settlemen…
i loved reading the rise of rome, by anthony everitt.
https://www.amazon.com/Rise-Rome-Making-Worlds-Greatest/dp/0...