From the Observer archive, 31 January 1965: Winston Churchill’s state funeral procession makes its way towards St Paul’s Cathedral

Photograph: Keystone/Getty Images

Groupies by  Baron Wolman. These are the exotic, sexually-sophisticated ‘super-groupies’ of sixties San Francisco. Photograph: Baron Wolman

Source: Reuters

Unknown Martin Luther King interview comes to light

Source: Guardian.co.uk

Trotsky’s assassination remembered by his grandson

Marilyn Monroe with Joe DiMaggio, c1955. Photograph: AP

Remembering Marilyn Monroe 50 years on from her death - by John Banville, who fell in love with her when he was 10

Source: Damn Fine Media

Olympics 100m - a short animated history

Photograph: AP

Think some of your underwear is old?

Fashion experts have been surprised by the discovery of four bras around 600 years old in an Austrian castle.

Photographs: Otto Herschan/Hulton Royals Collection/Getty Images and Oli Scarff/Getty Images

Queen Victoria’s private beach, Osborne Bay on the Isle of Wight, is to go on public view for the first time - see more images on the Guardian

Photography by David Levene

Queen’s diamond jubilee procession in two minutes – timelapse video