More like 20 birthdays. Each of the dozens of territories she ruled over finds its own convenient time for a local celebration. https://en.wikipedia.org/wiki/K

More like 20 birthdays. Each of the dozens of territories she ruled over finds its own convenient time for a local celebration. https://en.wikipedia.org/wiki/King's_Official_Birthday https://en.wikipedia.org/wiki/King's_Official_Birthday (also an example of a page in flux, with about half the references updated to refer to the king instead of a queen).