I originally posted this on the other site back when I took the picture, and it resulted in a lot of confused comments, especially from Americans, eventually getting removed by overzealous mods. Either way, I promise you that this date does not exist, and has never existed.
I disagree with that assumption.
The comment I was originally replying to was talking about the two most debated formats while ignoring ISO for “non-technical” people. Those two formats are that way because of the way people most commonly speak it in the region where they originated. I agree that the best written format is ISO, but it’s not commonly used outside of technical circles because it requires that you say it in a different order than you read it, which proves difficult for a lot of people.