Jornadas de Julio
On 16 July, spontaneous demonstrations of workers and soldiers began in Petrograd, demanding that power be turned over to the soviets. The Central Committee of the Russian Social Democratic Labour Party provided leadership to the spontaneous movements. On 17 July, over 500,000 people participated in what was intended to be a peaceful demonstration in Petrograd, the so-called July Days. The Provisional Government, with the support of Socialist-Revolutionary Party-Menshevik leaders of the All-Russian Executive Committee of the Soviets, ordered an armed attack against the demonstrators, killing hundreds.