LATER YEARS  
When the Communist League dissolved in 1852, Marx maintained contact and corresponded with hundreds of revolutionaries with the aim of forming another revolutionary organization. These efforts and those of his many collaborators culminated in 1864 in the establishment in London of the First International. Marx made the inaugural address, wrote the statutes of the International, and subsequently directed the work of its general council or governing body. After the suppression of the Commune, in which members of the First International participated, the International declined, and Marx recommended the removal of its headquarters to the United States. The last eight years of his life were marked by an incessant struggle with physical ailments that impeded his political and literary labours. Manuscripts and notes found after his death in London on March 14, 1883, revealed that he had projected a fourth volume of Das Kapital to comprise a history of economic doctrines; these fragments were edited by the German socialist Karl Johann Kautsky and published under the title Theories of Surplus Value (4 vols., 1905-1910; trans. 1952). Other works planned and not executed by Marx included mathematical studies, studies embodying applications of mathematics to economic problems, and studies on the historical aspects of various technological developments.