Vatican City
The name was first used in the Lateran Treaty, signed on 11 February 1929, which established the modern city-state. The name is taken from Vatican Hill, the geographic location of the state. "Vatican" is derived from the name of an Etruscan settlement, "Vatica" or "Vaticum" meaning garden, located in the general area the Romans called "vaticanus ager", "Vatican territory".
Vatican and Eastern Europe (1846–1958)
The Vatican and Eastern Europe (1846–1958) describes the relations from the pontificate of Pope Pius IX (1846–1878) through the pontificate of Pope Pius XII (1939–1958). It includes the relations of the Church State (1846–1870) and the Vatican (1870–1958)
with Russia (1846–1918), Lithuania (1922–1958) and Poland (1918–1958).