23 August is celebrated as the Day of the National Flag (Ukrainian: День Державного прапора України, lit.

[4] The yellow-and-blue flag is first verifiably documented in Ukraine on 25 June 1848 when two blue and yellow banners were hung on the Lviv (then named Lemberg and situated in the Austrian Empire) Townhall (Rathaus).

[5][6] It is unknown who hang the banners and the Austrian authorities dissociated themselves from this action, as did the Supreme Ruthenian Council (Ukrainian political organization).

[3] On 23 August 1991, after the failure of the August 1991 Soviet coup attempt, a group of people's deputies brought a blue-yellow Ukrainian flag into the session hall of the Verkhovna Rada (then the parliament of the Ukrainian SSR of the Soviet Union, now the national parliament of Ukraine).

[6] The consecration of the flag was conducted by priest Petro Boyko [uk] of the Ukrainian Autocephalous Orthodox Church.