On 5 December 1965 the 'Glasnost Rally' was held on Moscow's Pushkin Square in response to the trial of writers Andrei Sinyavsky and Yuli Daniel. The first spontaneous public political demonstration in the USSR after the Second World War, the 'Glasnost Rally' is considered to mark the beginning of the human rights movement in the Soviet Union. The main demand of the participants was transparency of the trial of Sinyavsky and Daniel. The rally took place on Soviet Constitution Day.