The Universal Declaration of Human Rights, adopted by the General Assembly of the United Nations in 1948, is the first UN human rights document to include civil and political rights as well as economic, social and cultural rights. However, since that time a dichotomy between civil and political rights and economic, social and cultural rights has characterized UN human rights activities. In 1966 the General Assembly adopted two separate human rights documents: the International Covenant on Civil and Political Rights (ICCPR) and the International Covenant on Economic, Social and Cultural Rights (ICESCR). Two separate covenants were drafted as a result of western pressure. Western countries stressed the alleged difference in character of both categories of rights: civil and political rights could be implemented immediately while most economic, social and cultural rights could be implemented only progressively. In the Vienna Declaration, adopted by the World Conference on Human Rights in 1993, the principle of the equality of all rights was, however, forcefully emphasized.