The Constitution of the Republic of Azerbaijan adopted in 1995 was the first Constitution of independent Azerbaijan. The Azerbaijan Democratic Republic existed for 23 months during 1918-1920 did not have the main Law of the state. The history of the Constitution of the Azerbaijan Republic mainly dates from the period when Azerbaijan was the Soviet Republic.
The first Constitution of Azerbaijan adopted on the 19th of May, 1921 at the All-Azerbaijan Soviets Congress. A new variant of the Constitution of Azerbaijan SSR fitted to the Constitution of the USSR of 1921, adopted at the 4th All-Azerbaijan Soviets Congress in the 14th of March, 1925. The final Constitution of Azerbaijan SSR adopted on the 21st of April 1978, was fitted to the Constitution of the USSR alike the previous.
After Azerbaijan got its independence appeared necessity to work out a new Constitution. A commission headed by Heydar Aliyev established with this purpose. The project of the Constitution presented to the referendum. The first Constitution of independent Azerbaijan adopted with the referendum on the 12th of November, 1995.
The first Constitution of independent Azerbaijan put the basis of the state establishment of the Republic of Azerbaijan. New Constitution of Azerbaijan is composed of 5 parts, 12 chapters and 158 articles.
Beginning from that day we celebrate November 12 as the Day of the Constitution of the Republic of Azerbaijan.
From 2006, if a holiday falls on the weekend, then the next working day counts as a holiday.