<prompt> Bhala okuqhubekayo kwalesi sigaba - Iphasi laziwa ngokuyinhloko ngempi enkulu ephakathi  <response>: ka-August 17, 986, lapho amabutho oMbusi waseByzantium uBasil II aqothulwa nguTsar Samuil waseBulgaria, amisa ngempumelelo umkhankaso waseByzantium emazweni aseBulgaria. 