Constitution Day (Jap. 憲法記念日) is celebrated in Japan every year on May 3, since 1948 - the first anniversary of the entry into force of the new Constitution, and is a public holiday in the country.
The 1947 Constitution, although it inherited some of the provisions of the former Meiji Constitution, was of a fundamentally new character, which was determined by the situation in the country.
After being defeated in World War II, Japan occupied by American troops was forced to accept the demands of the allies for the democratization of the political system. The main provisions of the new law of the state were the recognition of the sovereignty of the people, fundamental human rights, the principles of separation of powers and local self-government.