Q: This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
The Crimean War was one of the first conflicts to use modern technologies such as explosive naval shells, railways, and telegraphs.(Preface) The war was one of the first to be documented extensively in written reports and photographs. As the legend of the "Charge of the Light Brigade" demonstrates, the war quickly became an iconic symbol of logistical, medical and tactical failures and mismanagement. The reaction in the UK was a demand for professionalization, most famously achieved by Florence Nightingale, who gained worldwide attention for pioneering modern nursing while treating the wounded.
A:
What modern technologies were first used during the Crimean War?