context: The Yaroslavl uprising (in Soviet historiography known as the Yaroslavl rebellion) is an episode of the civil war in Russia, the anti-Bolshevik White Guard speech of townspeople and alien members of the organization B.V. Savinkov in Yaroslavl on July 6-21, 1918. Suppressed by the forces of the Workers 'and Peasants' Red Army. The uprising began inopportune, since the Cheka by this moment had begun the arrests of the Moscow branch of the Union for the Defense of the Homeland and Freedom. This lack of timeliness and the inability to coordinate their actions with other anti-Bolshevik forces around the region of the uprising predetermined an unsuccessful outcome. The lack of reinforcements and ammunition among the rebels also affected.
question: When did the Yaroslavl uprising begin?
answers.text: 1918