 On March 5, 1935 Mednovsky District with the center in the selo of Mednoye was established as well on the areas previously belonging to Kalininsky, Likhoslavlsky, and Novotorzhsky Districts.On July 4, 1956 it was abolished and split between Kalininsky and Novotorzhsky Districts.On September 8, 1937 Orshinsky District with the administrative center in the selo of Rozhdestveno was established in the area which previously belonged to Konakovsky and Zavidovsky Districts.