People from Yorkshire are the most common in the UK. That is to say, the population who can claim to be born in Yorkshire are the most plentiful. It follows, therefore, that those same people cannot claim to be special. It also follows that we should not finger-point when the odd Peter Sutcliffe, John Christie, Donald Neilson, Dracula or Ian Botham (the latter two non-native) turn up in their midst. Perhaps, some leeway might be allowed in the case of Jimmy Savile. That said, there is significant evidence that your Yorkshire Tyke tends to hyperbolize their place of birth far more than people born elsewhere in the UK. Although, those born in Scotland, the north west and south west of England can get overzealous sometimes!
Yorkshire Day is "celebrated" on 1 August each year, or summer, as it is known in Yorkshire. It has very little history as it first appeared in 1975. In fact, it is fallacious as this was a year after "Yorkshire" ceased to exist having been split into the imaginative North, South, East and West and other parts of it being donated to Cleveland to the north.
Nonetheless, in my opinion, there are parts of Yorkshire which offer stunning and varied countryside of dales, fells, moorland and coastline. There are others parts which are not so attractive - these tend to be where the majority of the inhabitants can be found.
A happy day to all those from Yorkshire. Although that salutation is superfluous as they tend to believe and live by their own exaggerated claims.