Marxist historiography developed as a school of historiography influenced by the chief tenets of Marxism, including the centrality of social class and economic constraints in determining historical outcomes. Friedrich Engels wrote "The Condition of the Working Class in England in 1844", which was salient in creating the socialist impetus in British politics from then on, e.g. the Fabian Society. R. H. Tawney's "The Agrarian Problem in the Sixteenth Century" (1912) and "Religion and the Rise of Capitalism" (1926), reflected his ethical concerns and preoccupations in economic history. A circle of historians inside the Communist Party of Great Britain (CPGB) formed in 1946 and became a highly influential cluster of British Marxist historians, who contributed to history from below and class structure in early capitalist society. Members included Christopher Hill, Eric Hobsbawm and E. P. Thompson.