Bulgaria; Historical and Geographical Outline

Aegean agricultural army Assen Balkan Peninsula Balkan Range beautiful became began Black Sea Bogomils bondage Boris Bourgas boyars built Bulgarian Kingdom Bulgarian language Byzantine Empire capital cent centre Church co-operative Constantinople country's cultural Danube Danubian Plain detachments Dobroudja Eastern economic electric Emperor exports farming favourable fertile feudal fighting foreign garian Georgi Dimitrov Greek important increased industry inhabitants invaded Isker Ivan Alexander Ivan Assen Khan Kroum land large number liberation Macedonia machine-building Maritsa masses Mountains nazi Nessebur Ottoman Empire output Party peasants people's Pirin Pleven Plovdiv political population power stations Preslav proclaimed production Proto-Bulgarian railway rayah rebellion rebels regions Rhodopes Rila River Roman Rousse rulers Rumania Russian Samu'il Serbia Slav Slav-Bulgarian socialist Sofia Soviet Sredna Gora Stara Zagora struggle Sultan territory Thrace Thracian throne tion tons took town trade treaty troops Tsar Turkey Turkish Turks Turnovo Union uprising Varna Vidin villages Vratsa