INTERNATIONALE SITUATIONNISTE. Aux Poubelles de l’Histoire. Paris: Internationale Situationniste, 21 February 1963. Broadside, 94 x 64 cm. (folded to 47 x 32 cm.); black ink on white stock.
Large broadside issued by the Situationist International, collectively signed by the members of the Central Council (Michèle Bernstein, Guy Debord, Attila Kotanyl, Uwe Lausen, J. V. Martin, Jan Strijbosch, Alexander Trocchi, Raoul Vaneigem). It is comprised of two texts: 1) “Sur la commune″ (in English: “Theses on the Commune”), from 18 March 1962, signed by signed by Debord, Kotanyi et Vaneigem; and 2) “La signification de la commune″ (in English: “The Meaning of the Commune”) by Henri Lefebvre, published in the last issue of the Marxist periodical Arguments in late 1962 / early 1963. The two texts are shown next to one another, showcasing Lefebvre’s plagiarism of Situationist ideas. “Aux Poubelles de l’Histoire” is later reprinted in Internationale Situationniste 12, pp. 108-111.
This was not the first time the Situationist International had written against Arguments. In 1960, in Internationale Situationniste 5, the Council of the SI states that anyone who is found collaborating with Arguments from January 1, 1961 onwards is ineligible to join the group (see http://juralibertaire.over-blog.com/article-aux-poubelles-de-l-histoire-42294891.html). Likewise, Henri Lefebvre had been attacked by the SI numerous times before.
Raspaud 115. We locate 3 copies on OCLC (BnF, Jacques Doucet, Yale).
Situationniste Blog 
I would say that Lefebvre had been “criticised several times before” this pamphlet, rather than attacked. Lefebvre had been criticised several times before in the IS, and the tone at those times was measured, and even led to Lefebvre contacting the group and developing a constructive relationship with the situs for a time. The last time this criticism was respectful was in the issue of “internationale situationniste” that immediately preceded their denunciation of his plagiarism in the pamphlet (see, http://debordiana.chez.com/francais/is8.htm#renseignements). In that issue they opposed the way Lefebvre, in his recently published work, “Introduction à la modernité”, represented them as a “youth” phenomenon, as well as the way he compared them to another group.
Indeed, it is the pamphlet “Aux Poubelles de l’Histoire” that marks the end of the relationship Debord and other situs had with Lefebvre. And certainly the tone of their criticisms of Lefebvre after this date are much more hostile.
Unfortunately, the situs relationship with Lefebvre is one of the least understood aspects of this much maligned group – a situation Lefebvre has contributed to, particularly in his self-serving interview with Kirstin Ross that most people regard, sadly, as the last word on this relationship.
Thanks for this clarification – appreciate it
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