By the end of 1917 a Bolshevik dictatorship had been established. Who was General Kornilov?

One mark for each relevant point.
Responses may include the following:
- Appointed in 1917 as Supreme Commander of the armed forces by Kerensky.
- Told by Kerensky to impose order in Petrograd.
- Despairing of the provisional Government, he led an assault on the Petrograd Soviet.
- Bolsheviks assembled an army and defeated Kornilov's attempt to end the revolution. He was arrested.
- He escaped and later fought in the Civil War against the Bolsheviks.