On 26 January 1927 members of the Royal Institution and a reporter from The Times saw in a laboratory at 22 Frith Street, Soho above today’s Bar Italia an invention demonstrated by Mr John Logie Baird called a televisor. It was the world’s first public demonstration of television. It was also the first demonstration of a television system that could broadcast live moving images with tone graduation and with a scan rate of 12.5 pictures per second.

On 26 January 1960 Michael Black pleaded guilty to burglary and stealing jewellery at a house in Acacia Road. Surprisingly he was a company director with assets of £30,000

Bow Street police station had a white light and not traditional blue as Queen Victoria’s Albert died in the blue room at Windsor Castle

The traditional wedding cake design is based on the spire of 17th century St. Bride’s Church designed by Sir Christopher Wren

In the central courtyard of the Victoria and Albert museum is a memorial to Jim, faithful dog of Henry Cole, the museum’s first director

David Cameron was not first Prime Minister to use Tube – Gladstone did it – except he was dead (the coffin was brought to Westminster on District Line)

Beatrix Potter lived near Brompton Cemetery where names on graves include Mr Nutkins, Jeremiah Fisher and Peter Rabbit

The early 1980s Burlington Arcade beadle tells someone off for whistling, they turn round, it’s Paul McCartney – beadle exempts him for life

The oldest surviving regular contest in the is World Doggett’s Coat and Badge Race rowing up the Thames between two Swan pubs: London Bridge to Chelsea

Embankment Station, northbound Northern Line is the only platform still playing the original ‘Mind the Gap’ by sound engineer Peter Lodge

Alexander Graham Bell first successfully demonstrated his device later called a telephone from rooms at Brown’s Hotel, Dover Street in 1876

A ‘pickadil’ was one of those big ruffed Elizabethan collars. Man who made fortune from them built Piccadilly Hall – hence the street name

Trivial Matter: London in 140 characters is taken from the daily Twitter feed @cabbieblog.
A guide to the symbols used here and source material can be found on the Trivial Matter page.