Azerbaijan is celebrating State Flag Day on November 9, commemorating one of the country's most important symbols of national sovereignty, independence, and statehood.

The holiday was established by a presidential decree signed by President Ilham Aliyev on November 17, 2009. On December 4 of the same year, the Azerbaijani parliament officially designated November 9 as State Flag Day.

The Azerbaijani national flag, inherited from the Azerbaijan Democratic Republic (ADR), represents the country's commitment to freedom, national and spiritual values, and universal ideals.

The flag of the Azerbaijan Democratic Republic was officially adopted at a government meeting on November 9, 1918, and remained the country's state flag until April 1920, when the ADR ceased to exist.

Its return as a national symbol came on November 17, 1990, when the Supreme Majlis of the Nakhchivan Autonomous Republic, under the leadership and initiative of Heydar Aliyev, adopted the historic tricolor as the republic's state flag.

On February 5, 1991, the Supreme Council of the Republic of Azerbaijan passed legislation granting the flag official state status.

Since the restoration of Azerbaijan's independence, the national flag has remained a powerful symbol of the country's sovereignty, national identity, and historical continuity.