This article originally appeared on 7 May 2018. It has been republished in light of the commemoration of the day on which Karl Marx and Friedrich Engels published the Communist Manifesto – 26 February 1848.
The blurry snapshot catches Leon Trotsky in mid-sentence, in Frida Kahlo’s house sometime in 1937. To the left of the frame is Natalia Sedova, Trotsky’s wife. To the right is Kahlo and, half hidden behind her, a young woman listening intently: Trotsky’s secretary Raya Dunayevskaya.