Dee ihe na-aga n'ihu maka paragraf a - A na-ama ụzọ ahụ maka nnukwu agha Middle Ages
nke 17 Ọgọstụ 986, nke ndị agha nke Byzantine Emperor Basil nke Abụọ meriri Tsar Samuil nke Bulgaria, na-akwụsị mkpọsa Byzantine na ala ndị Bulgaria.