Existence of life

Re: Existence of life

how do you know they modified? other than quran, what evidence is there that God sent messengers to Native Americans, native aborignal australians, ancient polynesians? even if they modified certain things (like christian and jews did), other things would have been there at least. how come their story of creation wasn’t about adam and eve?
also it seems a bit strange that every single civilization changed/modified Allah’s message, except muslims..