document. In its preamble, governments commit themselves and their people to progressive measures that secure the universal and effective recognition and observance of the human rights set out in the Declaration. Eleanor Roosevelt supported the adoption of the text as a declaration, rather than as a treaty, because she believed that it would have the same kind of influence on global society as the United States Declaration of Independence had within the United States. Even though it is not legally binding, the Declaration has been incorporated into or influenced most national constitutions since 1948. It has also served as the foundation for a growing number of national laws, international laws, and treaties, as well as for a growing number of regional, subnational, and national institutions protecting and promoting human rights. The Declaration's all-encompassing provisions serve as a "yardstick" and point of reference by which countries' commitments to human rights are judged, such as through the treaty bodies and other mechanisms of various human rights treaties that monitor implementation. Legal effect In international law, a declaration is distinct from a treaty in that it generally states aspirations or understandings among the parties, rather than binding obligations. The Declaration was explicitly adopted to reflect and elaborate on the customary international law reflected in the "fundamental freedoms" and "human rights" referenced in the United Nations Charter, which is binding on all member states. For this reason, the Universal Declaration of Human Rights is a fundamental constitutive document of the United Nations and, by extension, all 193 parties of the United Nations Charter. Nevertheless, the status of the Declaration as a legally enforceable document varies widely around the world: some countries have incorporated it into their domestic laws, while other countries consider it merely a statement of ideals, with no binding provisions. Many international lawyers believe that the Declaration forms part of customary international law and is a powerful tool in applying diplomatic and moral pressure to governments that violate its articles. One prominent international jurist described the UDHR as being "universally regarded as expounding generally accepted norms." Other legal scholars have further argued that the Declaration constitutes jus cogens, fundamental principles of international law from which no state may deviate or derogate. The 1968 United Nations International Conference on Human Rights advised that the Declaration "constitutes an obligation for the members of the international community" to all persons. The Declaration has served as