by Crevel, signed by Breton, Éluard, Péret, Tanguy, and the Martiniquan Surrealists Pierre Yoyotte and J.M. Monnerot perhaps makes it the original document of what is later called "black Surrealism", although it is the contact between Aimé Césaire and Breton in the 1940s in Martinique that really lead to the communication of what is known as "black Surrealism". Anticolonial revolutionary writers in the Négritude movement of Martinique, a French colony at the time, took up Surrealism as a revolutionary method – a critique of European culture and a radical subjective. This linked with other Surrealists and was very important for the subsequent development of Surrealism as a revolutionary praxis. The journal Tropiques, featuring the work of Césaire along with Suzanne Césaire, René Ménil, Lucie Thésée, Aristide Maugée and others, was first published in 1941. In 1938 André Breton traveled with his wife, the painter Jacqueline Lamba, to Mexico to meet Trotsky (staying as the guest of Diego Rivera's former wife Guadalupe Marin), and there he met Frida Kahlo and saw her paintings for the first time. Breton declared Kahlo to be an "innate" Surrealist painter. Internal politics In 1929 the satellite group associated with the journal Le Grand Jeu, including Roger Gilbert-Lecomte, Maurice Henry and the Czech painter Josef Sima, was ostracized. Also in February, Breton asked Surrealists to assess their "degree of moral competence", and theoretical refinements included in the second manifeste du surréalisme excluded anyone reluctant to commit to collective action, a list which included Leiris, Limbour, Morise, Baron, Queneau, Prévert, Desnos, Masson and Boiffard. Excluded members launched a counterattack, sharply criticizing Breton in the pamphlet Un Cadavre, which featured a picture of Breton wearing a crown of thorns. The pamphlet drew upon an earlier act of subversion by likening Breton to Anatole France, whose unquestioned value Breton had challenged in 1924. The disunion of 1929–30 and the effects of Un Cadavre had very little negative impact upon Surrealism as Breton saw it, since core figures such as Aragon, Crevel, Dalí and Buñuel remained true to the idea of group action, at least for the time being. The success (or the controversy) of Dalí and Buñuel's film L'Age d'Or in December 1930 had a regenerative effect, drawing a number of new recruits, and encouraging countless new artistic works the following year and throughout the 1930s. Disgruntled surrealists moved to the periodical Documents, edited by Georges Bataille, whose anti-idealist