The East Bulgarian originates from Bulgaria, like its name suggests. The East Bulgarian is a light riding and draft horse, usually chestnut, bay or black. They have originated since 1900 from Kabuik stallions, Thoroughbreds and English halfbred crossed with Anglo-Arab, Arab and Bulgarian Native horses. The breed was recognized in 1951. They are bred as sport horses for equestrian events such as dressage and jumping, and racing.
References
Mason, I.L. 1996. A World Dictionary of Livestock Breeds, Types and Varieties. Fourth Edition. C.A.B International. 273 pp.
Hendricks, Bonnie L. "East Bulgarian." International Encyclopedia of Horse Breeds. Norman: U of Oklahoma, 1995. 165-66. Print.