During the 19th and early 20th century, the region became relatively poor and economically isolated. A significant part of its population emigrated to the larger cities of Greece, especially Athens, and other countries such as the United States and Australia. It was badly affected by the Second World War and Greek Civil War, experiencing some of the worst atrocities committed in Greece during those conflicts. Living standards improved dramatically throughout Greece after the country accedes to the European Union in 1981.