There comes a time in the life of every nation when a once-in-a-generation change creeps up on it unobserved.

In a single day, something grabs the country by the throat, destroys the prevailing calamity, and reveals a bright new landscape of infinite possibility.

Yesterday, that tipping point occurred in middle-England, transforming Britain overnight from a grubby little socialist island off the north-west corner of Europe, into Borisland.

In the context of massive gains by Conservatives in the local elections, London swept away its Mayor, Red Ken Livingstone — who encouraged every terrorist and barmy oddball in exchange for votes — and out popped Boris Johnson.

Boris is a classical scholar who could easily double as a standup comedian. Indeed he often chairs the popular TV panel show Have I Got News For You.

His opponents regularly portray him as “priapic” and a “buffoon”, slurs that have only embellished his aura. Being a priapic buffoon is not an easy accomplishment. Try it.

In fact, as a former editor of the prestigious and gentlemanly journal, The Spectator, he is far from making the “B” and “P” words his own.

As well as holding the Parliamentary seat of Henley, Boris is possessed of an unshakeably amiable nature and an easy approachability that makes him a huge favourite with all kinds of people.

Syntagma does not underestimate Boris as many do, nor do we underestimate the size of the task now facing him. Governing London is no job for the fainthearted or the incompetent. For now, it is enough that he isn’t Ken.

Soon though he’ll be called upon to show his mettle. We have no doubt he will succeed and lead the charge for his party leader, David Cameron, to become Prime Minister, whenever the general election is called.

Hail to Boris, Chieftan of London, the greatest city on earth — apart from Exeter, of course.