Indiani Metropolitani (Metropolitan Indians) were a small faction active in the Italian far-left protest movement during 1976 and 1977, in the so-called "Years of Lead".
A figurehead was the philosopher Antonio Negri, considered the theorist of the movement, later imprisoned for suspected links with the Red Brigades and accused of having a moral responsibility for the violence associated with the Autonomists.
The apex of the movement took place in 1976 and 1977, and manifested itself with urban guerrilla activity, and occupations of universities, high schools and factories.
The main tribù was leaded by two young performers also ideologist strongly atracted by american Beat Generation leaded by Allen Ginsberg, Mario Appignani(Crazy Horse "Cavallo Pazzo") and Marco Erler (Red Cloud "Nuvola Rossa").The most famous episode of the period was the protest against a speech of left-wing union leader Luciano Lama, which ended in a riot with Lama and his supporters chased away.
Many of them, as the movement was on the wane, became active in the Centri Sociali, usually squatted premises to create a "free" space for young people to socialize and sponsor music and other artistic events.