Once the baby is born, doctors will sign a foolscap-size document, with the palace letterhead, giving the baby's gender and time of birth. It will be terse and formal the language is dictated by protocol and will read something like "The Duchess of Cambridge was safely delivered of a prince / princess." It may also provide the infant's weight.
A royal aide will give this bulletin to an official, whose task is to carry the news from the hospital to the palace. It's going to be a suspenseful short journey, about 15 minutes, and the drive will almost certainly be broadcast live to millions of television viewers worldwide.
Once at the palace, the official will post the bulletin on a wooden easel placed in the frontcourt for the public to see.
At the same time, the monarchy's official Twitter and Facebook accounts will announce the news online.
The method of announcement has survived remarkably intact throughout the years, with only a few minor points of difference for example, the bulletin used to be posted on the black railings outside the palace, not on an easel.
The biggest difference, of course, is the presence of online social media for the first time in the history of royal births. Twitter and Facebook have replaced cables and radio announcements, which mean that the new royal baby will be the first to own a hashtag and the first to receive thousands of instant blessings and well wishes from around the world.
- AP