Today is a day of forgotten heroes, and the Leo Foundation chose it to remember those visionaries at J. Lyons & Co who built the world’s first business computer. Ever since I wrote A computer called LEO I’ve been honoured to belong to the small community of LEO veterans and enthusiasts who come together from time to time to celebrate its extraordinary achievements. This month sees the 60th anniversary of the day on which the machine ran the world’s first clerical computing application, known as ‘Bakery Valuations’. To mark the occasion, the Leo Foundation invited LEO veterans, computer history VIPs and members of the press to a lunch at the Science Museum. The event was sponsored by Google. We had all been delighted when Google’s Eric Schmidt went out of his way to mention LEO as a high point of British innovation in his McTaggart Lecture at Edinburgh in August. Today I discovered that the researcher working with him on the speech, Lynette Webb, found the story in my book, thanks to a chain of events involving Bletchley Park and the business network LinkedIn. As a further consequence, Google arranged for its in-house video unit, Across the Pond Productions, to make a five-minute film for the anniversary celebration, and you can now see it online. You can also read the story in the Daily Telegraph, and hear Frank Land, one of the programming pioneers, speaking on the Today programme this morning.