ARCHAEOLOGICAL EXPLORATIONS IN KABIYUK (Stanislav Ivanov – stanislavivanovarh@gmail.com, Tihomir Tihov) A layer of debris up to 50 cm thick, containing stones, mortar and fragmentary building ceramics that originated from the destroyed proto-Bulgarian pagan temple, was discovered in the southern extension of the trench. The temple dated to the first half of the 9th century AD and was a rectangular building with an inner rectangular room located in the middle. It was demolished most probably after the Christianization of the First Bulgarian Kingdom in AD 864. Remains from a pavement were documented under the layer of debris. Most stones from the pavement were taken away and probably reused in other buildings. Postholes arranged in a line oriented east – west were discovered under the stone pavement. The postholes preceded the construction of the pagan temple and belonged to a quadrilateral timber building, which was located around the inner rectangular room of the later temple. A Christian cemetery of the 10th – 11th centuries, consisting of eight graves and situated in the central part of the demolished pagan temple, was discovered on the site.