The period or the late 1960 – 1970s came to be known as the "Opposti Estremismi", (from left-wing and right-wing extremists riots), later renamed "anni di piombo" ("years of lead") because of a wave of bombings and shootings — the first victim of this period was Antonio Annarumma, a policeman, killed on 12 November 1969 in Milan during a left-wing demonstration. In December 1969, four bombings struck in Rome the Monument of Vittorio Emanuele II ("Altare della Patria"), the "Banca Nazionale del Lavoro", and in Milan the "Banca Commerciale" and the "Banca Nazionale dell'Agricoltura". The later bombing, known as the Piazza Fontana bombing of 12 December 1969, killed 16 and injured 90. Social protests, in which the student movement was particularly active, shook Italy during the 1969 "autunno caldo" (Hot Autumn), leading to the occupation of the Fiat factory in Turin.