Asking for a source is not the same as claiming something isnt true.
I'm sure it is, especially now that people have given a source.
I politely asked for a source, no snark and when the op responded we had a pleasant exchange both ways. Only people i was snarky with were people other than the op who were snarky first.
@freemo @toxomat @ned you didn't just ask, you snarked a load of snark at the person you 'asked' after the fact, when it is not commonplace to cite things that are in the public consciousness widely already. This is social media, not a journal. They weren't making a claim that people haven't already largely backed up for themselves.
If you're honestly asking because you don't know (and not looking it up yourself for some reason), you don't have to be an ass about it.