Instructions: 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.
Input: In the early part of the 20th century, Atlantic City went through a radical building boom. Many of the modest boarding houses that dotted the boardwalk were replaced with large hotels. Two of the city's most distinctive hotels were the Marlborough-Blenheim Hotel and the Traymore Hotel.
Output:
When did Atlantic City go through a radical building boom?