Day of Slavonic Alphabet, Bulgarian Enlightenment and Culture

The Day of Bulgarian Alphabet, Bulgarian Enlightenment and Culture (Bulgarian: Ден на българската просвета и култура и на славянската писменост) has been celebrated in Bulgaria since 11 May 1851 (old style). Today, this holiday is celebrated every year on 24 May (new style) and is an official holiday of Bulgaria since 1990.