As Slavophilism morphed into pan-Slavism in the 19th century, it spilled over into archeology. This registered in the development of specific branches of Slavic or Russian archeology in many of the professional societies; Russian here included Little Russia and White Russia. When the Archeological Institute opened in Constantinople in 1894, direcotr Fedor Uspenskii focused on Serbia and Bulgaria, Slavic territories in the Ottoman Empire.