- Event 3: Rowlatt Act was passed in 1919. This act gave enormous powers to the police to arrest and detain people without trial. - Event 4: Death of Jatin Das occurred on September 13, 1929, after a 63-day hunger strike in Lahore jail, protesting against the conditions of Indian political prisoners. - Event 2: Dandi March (Salt March) led by Mahatma Gandhi took place from March 12, 1930, to April 6, 1930. It was a major act of civil disobedience against the British salt monopoly. - Event 1: The Second Round Table Conference was held in London from September 7, 1931, to December 1, 1931. Mahatma Gandhi attended this conference representing the Indian National Congress.