section_path: History and development
section_name: History and development
paragraph_text: History and development
  
  Since 1789, along with the Constitution of the United States of America (U.S. Constitution), which is the oldest and shortest written constitution still in force, close to 800 constitutions have been adopted and subsequently amended around the world by independent states.
  
  In the late 18th century, Thomas Jefferson predicted that a period of 20 years would be the optimal time for any constitution to be still in force, since "the earth belongs to the living, and not to the dead". Indeed, according to recent studies, the average life of any new written constitution is around 19 years. However, a great number of constitutions do not last more than 10 years, and around 10% do not last more than one year, as was the case of the French Constitution of 1791. By contrast, some constitutions, notably that of the United States, have remained in force for several centuries, often without major revision for long periods of time.
  
  The most common reasons for these frequent changes are the political desire for an immediate outcome and the short time devoted to the constitutional drafting process. A study in 2009 showed that the average time taken to draft a constitution is around 16 months, however there were also some extreme cases registered. For example, the Myanmar 2008 Constitution was being secretly drafted for more than 17 years, whereas at the other extreme, during the drafting of Japan 's 1946 Constitution, the bureaucrats drafted everything in no more than a week. Japan has the oldest unamended constitution in the world. The record for the shortest overall process of drafting, adoption, and ratification of a national constitution belongs to the Romania 's 1938 constitution, which installed a royal dictatorship in less than a month. Studies showed that typically extreme cases where the constitution-making process either takes too long or is extremely short were non-democracies.
  
  In principle, constitutional rights are not a specific characteristic of democratic countries. Autocratic states have constitutions, such as that of North Korea, which officially grants every citizen, among other things, the freedom of expression. However, the extent to which governments abide by their own constitutional provisions varies. In North Korea, for example, the Ten Principles for the Establishment of a Monolithic Ideological System are said to have eclipsed the constitution in importance as a frame of government in practice. Developing a legal and political tradition of strict adherence to constitutional provisions is considered foundational to the rule of law.