The provided text outlines the history and significance of National Flag Day in Azerbaijan, which is celebrated annually on November 9th. Originally created by the Azerbaijani Democratic Republic in 1918, the tricolour banner disappeared from public use when the nation became absorbed into the Soviet Union. Following the collapse of Soviet rule, the country officially reinstated this symbolic banner in 1991 as an emblem of its independence. President Ilham Aliyev formally established the legal holiday in 2009 to emphasize the banner’s importance to the nation’s sovereignty. To celebrate the occasion every year, citizens gather at the National Flag Square in Baku to witness official hoisting ceremonies involving the tallest flagpole globally.