Ramba uchiverenga ndima iyi - Chiziviso cha1908, chakaratidza kuputsa kweBulgaria nehurumende yeOttoman, chaiva kusunungurwa kwechipiri kweBulgaria. Mushure mekukunda Humambo Hwekutanga hweBulgaria muna 1018, kusunungurwa kwekutanga kweBulgaria kwakatungamira mukumisikidzwa kweHumambo hweChipiri hweBulgaria zvichitevera Kumuka kwaAsen naPeter
mukurwisa Umambo hweByzantium muna 1185.