The events are in this order as occured in the world history;
1) Sepoy Rebellion (This is also known as Indian Mutiny, the Great Rebellion, the Revolt of 1857 etc. and was the first major uprising against East India Company and reportedly set path for the establishment of British Raj in India)
2) British Raj established. (1858)
3) World War 1 (1914)
4) Amritsar Massacre (1919) (This is also known in Indian History as The Jallianwala Bagh massacre)
Manufacturing industries help in the war effort by providing military equipment for the war.
<u>Explanation:</u>
The industries which were manufacturing industries were very important for the war in the United States of America. The reason for this is that the industries were used to provide the military equipment which were to be used in the war by the military men. The manufacturing industries provided around 297000 aircraft, 86000 tanks, trucks, many artillery pieces for the war.
B. Slavery, because they would be pushed to do more work.
Hope this helps ●ᴥ●