Did later Buddhist traditions miscalculate the Buddha’s timeline by about 1200 years?

I came across this article on Indica Today which argues that traditional Buddhist chronologies (e.g. placing the Buddha’s nirvāṇa around 500-483 BCE) might involve a significant error, and that his historical period could be shifted by as much as 1200 years. The article mentions contradictions between Theravāda chronologies, Puranic records, and historical/archaeological data. Questions:- - How do Buddhist traditions themselves explain or reconcile these discrepancies in dating the Buddha’s life? - Is there any textual or archaeological evidence from within the Buddhist tradition that supports such a large chronological shift (e.g. Buddha at 1704 BCE rather than 500 BCE)? - How do Buddhist academicians assess these claims in comparison with the Ashokan inscriptions and other historical anchors?