Complex sentence: In November 1980, despite their being proscribed, they re-formed the CGT, thereafter known as CGT-Brasil, and on 7 November 1980, the latter called forth the first open demonstration against the junta.
Split into simpler sentences: In November 1980, despite their being proscribed, they re-formed the CGT, thereafter known as CGT-Brasil. On 7 November 1980, the latter called forth the first open demonstration against the junta.