Letterist International
The Lettrist International (LI) was the first breakaway group from Isidore Isou's Lettrist Movement LM. They would be followed in turn by the Ultra-Lettrists. The LI was formed after the 'left-wing' of the LM disrupted a Charlie Chaplin press conference for Limelight at the Ritz Hotel, Paris, in October 1952.
During their wanderings in the Summer of 1953, an 'illiterate Kabyle' suggested to them the term Psychogeography.
They published an information bulletin called Potlatch.
On 28th July 1957 they fused with the the International Movement For An Imaginist Bauhaus and the London Psychogeographical Association to form the Situationist International.
The New Lettrist International was founded more recently.
"Lettrism was conceived in Romania by Isidore Isou in 1942. He was only sixteen years old." -La Poesie Lettriste, Jean-Paul Curtay, Paris 1974