Boris Johnson reminded Tory conference delegates of his prediction that last year's London Olympics and Paralympics would spur a baby boom.
He told the Conservative Party conference: "I prophesied that the athletes had moved the people of this country to such paroxysms of excitement on the sofas of Britain that they had not only inspired a generation, but probably helped to create one as well."
"Like all my predictions and promises, I have delivered, in that GLA demographics say live births in London will be 136,942, which is more than in any year since 1966 when England won the World Cup."
More top news
Grant Shapps and Lord Feldman should stand down for their alleged inaction over bullying claims, father of activist who killed himself says.
Scans show there is a 90% chance Tutankhamun's tomb contains a hidden chamber - the last resting place of Queen Nefertiti.
A pregnant woman suffered broken bones and is to undergo surgery after being thrown on to the bonnet of a car in a collision.