Nonconformist conscience describes the moral sensibility of the Nonconformist churches—those which dissent from the established Church of England—that influenced British politics in the 19th and early 20th centuries. In the 1851 census of church attendance, non-conformists who went to chapel comprised half the attendance of Sunday services. Nonconformists were focused in the fast-growing urban middle class. The two categories of this group were in addition to the evangelicals or "Low Church" element in the Church of England: "Old Dissenters," dating from the 16th and 17th centuries, included Baptists, Congregationalists, Quakers, Unitarians, and Presbyterians outside Scotland; "New Dissenters" emerged in the 18th century and were mainly Methodists. The "Nonconformist conscience" of the Old group emphasized religious freedom and equality, the pursuit of justice, and opposition to discrimination, compulsion, and coercion. The New Dissenters (and also the Anglican evangelicals) stressed personal morality issues, including sexuality, temperance, family values, and Sabbath-keeping. Both factions were politically active, but until the mid-19th century, the Old group supported mostly Whigs and Liberals in politics, while the New—like most Anglicans—generally supported Conservatives. In the late 19th century, the New Dissenters mostly switched to the Liberal Party. The result was a merging of the two groups, strengthening their great weight as a political pressure group. They joined together on new issues especially regarding schools and temperance, with the latter of special interest to Methodists. By 1914 the linkage was weakening and by the 1920s it was virtually dead.