mocrats, under the leadership of Alcide De Gasperi, obtained a landslide victory. Consequently, in 1949 Italy became a member of NATO. The Marshall Plan helped to revive the Italian economy which, until the late 1960s, enjoyed a period of sustained economic growth commonly called the "Economic Miracle". In 1957, Italy was a founding member of the European Economic Community (EEC), which became the European Union (EU) in 1993.
From the late 1960s until the early 1980s, the country experienced the Years of Lead, a period characterized by economic crisis (especially after the 1973 oil crisis), widespread social conflicts and terrorist massacres carried out by opposing extremist groups, with the alleged involvement of US intelligence. The Years of Lead culminated in the assassination of the Christian Democrat leader Aldo Moro in 1978 and in the Bologna railway station massacre in 1980, where 85 people died; these events had deeply affected the whole country.
In the 1980s, for the first time since 1945, two governments were led by non-Christian-Democrat premiers: one liberal (Giovanni Spadolini) and one socialist (Bettino Craxi); the Christian Democrats remained, however, the main government party. During Craxi's government, the economy recovered and Italy became the world's fifth largest industrial nation, gaining entry into the G7 Group. However, as a result of his spending policies, the Italian national debt skyrocketed during the Craxi era, soon passing 100% of the GDP.
In the early 1990s, Italy faced significant challenges, as voters – disenchanted with political paralysis, massive public debt and the extensive corruption system (known as Tangentopoli) uncovered by the 'Clean Hands' investigation – demanded radical reforms. The scandals involved all major parties, but especially those in the government coalition: the Christian Democrats, who ruled for almost 50 years, underwent a severe crisis and eventually disbanded, splitting up