List of constitutions by age

The world's oldest countries based on a continuous form of government, i.e. a national constitution.

Years given are when each country's current constitution took effect, unless otherwise noted.

[edit] Oldest constitutions of sovereign states

Australia, 1901, Constitution of Australia
Finland, 1906
Monaco, 1911
Mexico, 1917
United Kingdom, 1927, no constitution^[5]
Vatican City, 1929, as defined in the Lateran Treaties
Ireland, 1937
Japan, 1947
Italy, 1948
China, 1949
India, 1950
Egypt, 1953
France, 1958
Malta, 1964
Pakistan, 1973
Sweden, 1974
Greece, 1975
Madagascar, 1975
Portugal, 1976
Spain, 1978
Chile, 1980
Turkey, 1982
Honduras, 1982
Guatemala, 1985
Philippines, 1987
Bulgaria, 1989
Macedonia, 1991
Colombia, 1991
Paraguay, 1992
Peru, 1992
Belgium, 1993, Constitution of Belgium
Andorra, 1993
Haiti, 1994, presidential republic, constitution approved 1987 but suspended in 1988, reinstated 1994
Venezuela, 1999
Nepal, 2006 (pending)

^ http://www.norway.org/culture/heritage/nationalday.htm
^ http://www.inghist.nl/Onderzoek/Projecten/Grondwet/index_html_en
^ http://www.v-brazil.com/government/laws/history.html
^ The Canadian Constitution of 1867 was based on earlier constitutions of Canadian provinces, going as far back as 1763. Major additions were made to the Canadian Constitution in 1982, but the 1867 text is still in effect.
^ The United Kingdom has no codified constitution, but instead relies on traditional customs and separate pieces of constitutional law. The Act of Union 1800 was enacted in 1801 and created the United Kingdom of Great Britain and Ireland. However, the Royal and Parliamentary Titles Act 1927 was a major governmental change that created the current official country name, United Kingdom of Great Britain and Northern Ireland, after the emergence of the Irish Free State (Ireland). Other significant governmental revisions include the Balfour Declaration of 1926, and the Statute of Westminster 1931.