Luhansk Oblast, also referred to as Luhanshchyna, is the easternmost oblast of Ukraine. Its administrative center is the city of Luhansk. The oblast was established in 1938 and bore the name Voroshilovgrad Oblast until 1958 and again from 1970 to 1991. It has a population of 2,102,921. Important cities in Luhansk Oblast include Alchevsk, Antratsyt, Brianka, Kadiivka, Kirovsk, Krasnodon, Khrustalnyi, Luhansk, Lysychansk, Pervomaisk, Rovenky, Rubizhne, Sievierodonetsk and Sverdlovsk.