Title: Petko R. Slaveĭkov, Li︠u︡ben Karavelov, Khristo Botev,     Zakhari Stoi︠a︡nov
People: Petko Rachov Slaveĭkov (1827-1895), Li︠u︡ben Karavelov (1834-1879), Khristo Botev (1848-1876), Zakhari Stoi︠a︡nov (1850-1889)