30 years of Independence

August 23rd flag day

23 August is celebrated as the 
Day of the National Flag (Ukrainian: День Державного Прапора України Day of the National Flag of Ukraine) in Ukraine; beginning in 2004.
The first ceremonial raising of the yellow-and-blue Ukrainian flag in modern times took place on 24 July 1990 at the flagstaff of the Kyiv City Council, one-and-a-half years before the flag was officially adopted as the National flag of the Ukrainian state (early 1992).

Since 1992 Independence Day of Ukraine is celebrated on 24 August

Google celebrates Ukrainian independence

Over the years Google has marked in its own style, the anniversary of independence