Which of the given statements is/are correct in the context of 'The Salt March and the Civil Disobedience Movement'? 

Statements: 

I. Mahatma Gandhi started his famous salt march from Sabarmati ashram accompanied by 78 of his trusted volunteers.

II. On 12 March he reached Dandi, and ceremonially violated the law, manufacturing salt by boiling sea water. 

III. This marked the beginning of the Non-Cooperation Movement.