On this day, in 753 BC, the legendary Romulus and Remus founded the eternal city of Rome. In fact, there are huge celebrations for it.
It's also Queen Elizabeth II's birthday. It must be gratifying to live through one's eighties thereby destroying one's useless son's chances at being king.
It is also the birthday of Charlotte Bronte.
If you lived in Texas, you would celebrate San Jacinto Day.
It is also the birthday of V.P. (you know who you are!). Many happy returns!