It was announced yesterday, with the publication of an official photograph, that a child is turning four today.

We spoke to anthropologist, Dr Kay Smallbones who told us: “This is actually far more common than people think. A child usually turns four, after being three for around twelve months. Four is then usually followed by five.

The really interesting thing is, in the vast majority of cases, around one hundred per cent of children get a year older on the same date every year. This normally happens on the same date they became a year older the previous year. It’s an amazing feat.”

The child, who lives with a mum and dad, has recently returned from holiday, where he wore socks and shorts, and he flew on a plane.

He’s believed also to have slept through the night, mostly, and to have eaten food several times a day while overseas.

He also starts school in September.

He has a little sister who also has a birthday annually.

She’s currently two, and is expected to be three next year. You could say she’s following in the footsteps of her older brother. Although there is expected to be a limitation on how much she can do this as they both get older.

Surprisingly both children are thrown a birthday party each year.

The one difference being that everyone in the United Kingdom is expected to chip in towards the party, but only a very few people are allowed to attend. About the number of people who usually attend a child’s birthday party.