The most significant event of the year. Throughout May, a number of cultural events are held on the territory of the Municipality of Sliven, organized by the Municipality of Sliven, cultural institutes, schools, and volunteers. The celebrations traditionally begin with the lighting of the symbolic fire. Sliven has been one of the most significant centres in Bulgaria since the National Revival, with remarkable traditions in our national culture. Many educators, artists, scientists and intellectuals, who shaped the culture of Bulgaria, came from Sliven. Quite understandably, the town became the host of prestigious cultural celebrations called "Sliven Fires."