The article describes the Campaign for the Banning of Atomic Weapons, sponsored by Brazilian Communist Party (PCB) in 1950. Following the pacifist line proposed by the USSR to all communist parties in the world, the campaign consisted in gathering signatures on petitions calling for the absolute banning of atomic bombs. Brazilian communists, even in illegality, organized themselves and conquered the support of different social groups to the campaign.
communism; PCB; peace; social imaginary; atomic bomb; Stockholm Appeal