First one is the Statehood Day on July 6 , marking the establishment of the medieval Kingdom of Lithuania by Mindaugas in 1253 .
As a result of a thousand - years history , Lithuania has two National days .
First one is the Statehood Day on July 6 , marking the establishment of the medieval Kingdom of Lithuania by Mindaugas in 1253 .
As a result of a thousand - years history , Lithuania has two National days .