Today Queen Elizabeth II will pass the record set by her great-great-grandmother Queen Victoria who, Buckingham Palace has calculated, reigned for 23,226 days, 16 hours and 23 minutes.
A royal source said: "You need to remember for the Queen this is a date whose calculation rests on the death of her father and great-great-grandmother, that naturally colours the way she sees it," Press Association reports.
"While she acknowledges it as an historic moment, it's also for her not a moment she would personally celebrate, which is why she has been keen to convey business as usual, and no fuss."
While it may by business as usual for her majesty, we are taking a moment to celebrate a few of the incredible everyday things that have been invented during her 63 years on the throne.
