Central State Historical Archive in Lviv (Tsentralnyi derzhavnyi istorychnyi arkhiv, m. Lviv, or TsDIAL). The central repository for historical documents dealing with pre-Soviet Western Ukraine, located in Lviv and overseen by the State Committee on Archives of Ukraine. It was established in 1944 as the Lviv Branch of the Central State Historical Archive of the Ukrainian SSR (see Central State Historical Archive in Kyiv) and incorporated the holdings of several exisiting Lviv archives. In 1958 it became a separate institution and in 1992 acquired its present name. In 2000 it had over 650 fonds with over 1,090,000 storage units.