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Learn More
In Learn More the National Geographic magazine team shares some of its best sources and other information to expand your knowledge of our featured subjects. Special thanks to the Research Division.

Related Links

Archaeological Museum of Plovdiv
Plovdiv's Archaeological Museum boasts one of the richest collections of artifacts related to the history of this city, among the most famous ancient towns on the Balkan Peninsula.

This fertile, sheltered region attracted settlers in ancient times. Today dozens of sites clustered around Perperikon reveal layer upon layer of archaeological remains. Go to this website to learn about Orpheus, Dionysus, and the Thracians and the treasures they left behind.

Thracology Page by Sonya Ilieva
A site dedicated to Thracian history and culture and its ties to other European civilizations, including those of the Greeks, Celts, and Romans.


Crampton, R. J. A Concise History of Bulgaria. Cambridge University Press, 1997.

Fol, Alexander, and Valeria Fol. The Thracians. All Bulgarian Foundation, 2005.

Marazov, Ivan. Ancient Gold: The Wealth of the Thracians. Harry N. Abrams, 1998.

Ovcharov, Dimiter. Fifteen Treasures From Bulgarian Lands. Bulgarian Bestseller, 2005.

Ovcharov, Nikolay. Perperikon: A Civilization of the Rock People. Borina Publishing House, 2005.

NGS Resources

McIntosh, Jane. Treasure Seekers.National Geographic Books, 2001.

Gibbons, Boyd. "The Bulgarians." National Geographic(July 1980), 90-111.

Renfrew, Colin. "Ancient Bulgaria's Golden Treasures." National Geographic World (July 1980), 112-29.

Bourchier, James D. "The Rise of Bulgaria."National Geographic World (November 1912), 1105-18.