Short answers, pulled from the story.
The Christian Democracy party took its first breath on the 15th of December 1943 within the Italian Social Republic. This Nazi-occupied territory hosted a gathering that sought to revive the defunct Italian People's Party from 1919.
Alcide De Gasperi served as Prime Minister of Italy starting in December 1945 and led the party through the 1948 general election. The Christian Democrats captured 48.5% of the vote, marking their highest result ever achieved under his leadership.
The Red Brigades abducted Aldo Moro during the late 1970s while he served as the main leader of the Christian Democracy party at that moment. His kidnapping triggered a shock response across the entire political establishment and marked a turning point in Italian political history.
The party disbanded officially on the 16th of January 1994 following Mani pulite investigations that began in Milan during 1992. Mino Martinazzoli served as the last secretary before deciding to change the name into the Italian People's Party to improve public image.
Northern Italy hosted stronger Christian Democratic support during the party's early years with Eastern Lombardy and Veneto containing particularly robust Catholic roots. Bergamo Province saw support climb even higher at 73.6% of the vote during the 1948 general election.