If you hit the century mark in the United Kingdom, you can look forward to two things: one firework of a birthday cake and a card from the queen.
It’s a tradition born of respect, but it hits a snag.
Queen Elizabeth may have sent tens of thousands of premature birthday cards, according to The Economist, but neither she nor her top statisticians know for sure.
That’s because various estimates of people aged older than 90 in England and Wales differ by about 46,000. ...