First Republic Day is an Armenian public holiday that commemorates the establishment of the Republic of Armenia on May 28, 1918.
Following the 1917 February Revolution in Russia, the Russian Provisional Government established the Special Transcaucasian Committee to govern the territory of what are now modern-day Azerbaijan, Armenia and Georgia.
In November 1917, the Transcaucasian Commissariat was established.
It decided to gather a general assembly and proclaim independence.
Eventually the Transcaucasian Democratic Federative Republic was proclaimed in February 1918.
Then on May 28, 1918, the Armenian National Council declared the independence of Armenia.
In 1920, it was invaded by the Soviet Red Army.
The holiday was not celebrated during the Soviet era, it was declared as public holidays after the dissolution of the USSR.