????? ????????? ?? ?????? ??????? ????? ??????????? ????????? ?? ?????????????? ?.?. ??????????? ?????????? ? ? ???????????? ???? ??????? ?? ??. ?????;????? (???????? ??????)  · ?????  · ??????  · ???? ?????Serdica once more flourished throughout the reign of Justinian I, when its defensive walls had been reinforced by doubling their thicknes