We see this all the time, journalists as an easy example like to invent "facts" that then become common sayings or cited by others as if it were always true. And some even evolve to become the truth eventually, accepted by historians with an agenda, though sometimes they get corrected a few years/decades/centuries later.

See "Let them eat cake", "Napolean is short", "inflation is transitory".

And then these people get mad when we don't find them as always trustworthy. Some things aren't even small omissions, others vastly misrepresent ideas so as to be wholly false.