 Complete the following phrase:  Many South Slavic literary and visual artists were influenced by Kosovo legends, including some highly internationally recognized. The most significant ones who have perpetuated the Kosovo Myth are the poet Petar II Petrović-Njegoš with his epic drama The Mountain Wreath 1847 and the sculptor Ivan Meštrović, while one of the main artistic representation is the painting Kosovo Maiden 1919 by Uroš Predić. Since its establishment, the myth and its poetic, literary, religious, and philosophical exposition was intertwined with political and ideological agendas. It became a central myth of Serbian nationalism used in the 19th century, and its importance was especially raised since the Congress of Berlin 1878. The myth was significant among other South Slavic nations, primarily in Montenegro and among the advocates of the unification of Yugoslavia. It was evoked at times of major historic events such as the 