You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Crimean_War

Context:
As the memory of the "Charge of the Light Brigade" demonstrates, the war became an iconic symbol of logistical, medical and tactical failures and mismanagement. Public opinion in the UK was outraged at the logistical and command failures of the war; the newspapers demanded drastic reforms, and parliamentary investigations demonstrated the multiple failures of the Army. However, the reform campaign was not well organized, and the traditional aristocratic leadership of the Army pulled itself together, and blocked all serious reforms. No one was punished. The outbreak of the Indian Revolution in 1857 shifted attention to the heroic defense of British interest by the army, and further talk of reform went nowhere. The demand for professionalization was, however, achieved by Florence Nightingale, who gained worldwide attention for pioneering and publicizing modern nursing while treating the wounded.:469–71

Question:
The outbreak of the Indian Revolution took place in what year?

1857