Following the liberation of Bulgaria, in accordance with the Treaty of Berlin (1878), Bulgaria was split into two halves – Southern Rumelia, which remained an autonomous province Ottoman province with Plovdiv as its capital, and the Principality of Bulgaria to the north. This statue commemorates the unification of the two halves into a single nation after a series of uprisings throughout the province. It was erected in 1985 on the 100th anniversary of the events, and depicts the motherland as a maternal figure holding a laurel wreath – a symbol of victory. Her wings represents the two halves of Bulgaria. The square itself is named after the unification, and the boulevard – after the date of its accomplishment, September 6th.