title: Constitution of Romania
context: The Constitution of Romania was adopted on 21 November 1991. The seventh permanent constitution in the country's history, it was approved that same year in a national referendum on 8 December and promulgated on the same day. It remains the current fundamental law that establishes the structure of the government of Romania, the rights and obligations of the country's citizens, and its mode of passing laws. It stands as the basis of the legitimacy of the Romanian government.
question: When did Romania sign it's Constitution?
answers: 21 November 1991