Economy of Bulgaria (574 euro) (December, 2017). The national currency is the lev (plural leva), pegged to the euro at a rate of 1.95583 leva for 1 euro. The lev is the strongest and most stable currency in Eastern Europe. The strongest sectors in the economy are energy, mining, metallurgy, machine building, agriculture and tourism. Primary industrial exports are clothing, iron and steel, machinery and refined fuels. The trading partners with largest contribution to the import/export are Germany, Italy, Romania, Turkey, Greece, Russia, France, Spain, Poland, Netherlands, China, Hungary and Belgium. Sofia is the capital and economic heart of Bulgaria and home to
Russians in Bulgaria in Silistra Province) in 1674, building a church in 1750. Another Russian-inhabited village in the northeast of Bulgaria is Kazashko in Varna Province, where descendants of Kuban and Don Cossacks have been living since 1905. The members of these Old Believer communities are locally known as Lipovans (липованци, "lipovantsi") and belong to a group also inhabiting Romania and Ukraine. Their main occupation is fishing, in the Danube for the Lipovans in Tataritsa and in Lake Varna for those in Kazashko. Following the Russo-Turkish War of 1877-78, largely fought on what is today Bulgarian territory, and the Liberation of Bulgaria to