United States. Central Intelligence Agency, CIA World Fact Book, 2004 — Liechtenstein (2004)
“ Introduction Liechtenstein Background: The Principality of Liechtenstein was established within the Holy Roman Empire in 1719; it became a sovereign state in 1806. Until the end of World War I, it was closely tied to Austria, but the economic devastation caused by that conflict forced Liechtenstein to enter into a customs and monetary union with Switzerland. Since World War II (in which Liechtenstein remained neutral) , the country's low taxes have spurred outstanding economic growth. ”
