Back in Zurich, Bernstein became increasingly active in working for "Der Sozialdemokrat" ("Social Democrat") and later succeeded Georg von Vollmar as the paper's editor, which he was for 10 years. It was during those years between 1880 and 1890 that Bernstein established his reputation as a major party theoretician and a Marxist of impeccable orthodoxy. He was helped in that by the close personal and professional relationship he established with Engels. The relationship owed much to the fact that he shared Engels's strategic vision and accepted most of the particular policies that Engels believed the ideas to entail. In 1887, the German government persuaded the Swiss authorities to ban "Der Sozialdemokrat". Bernstein moved to London, where he resumed publication from premises in Kentish Town. His relationship with Engels soon developed into friendship. He also communicated with various English socialist organizations, notably the Fabian Society and Henry Mayers Hyndman's Social Democratic Federation. In later years, his opponents routinely claimed that his "revisionism" was caused by seeing the world "through English spectacles". However, Bernstein denied the charges.