English: Archeological excavations and exploration of old initial foundation (dated by 1750th years) of the Dormition Cathedral in Poltava and cultural strata near it which were carried out in July of year of 2017. The construction of old Dormition Cathedral was executed since year of 1751 up to year of 1770, it was the first stone church in Poltava. The Cathedral was destroyed in 1934 under the order of Poltava’s regional committee of Communist party and restored (reconstructed) during the years of 1999-2003.