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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.

Ultimately, Lee spent over two and a half years writing To Kill a Mockingbird. The book was published on July 11, 1960. After rejecting the "Watchman" title, it was initially re-titled Atticus, but Lee renamed it "To Kill a Mockingbird" to reflect that the story went beyond just a character portrait. The editorial team at Lippincott warned Lee that she would probably sell only several thousand copies. In 1964, Lee recalled her hopes for the book when she said, "I never expected any sort of success with 'Mockingbird.' ... I was hoping for a quick and merciful death at the hands of the reviewers but, at the same time, I sort of hoped someone would like it enough to give me encouragement. Public encouragement. I hoped for a little, as I said, but I got rather a whole lot, and in some ways this was just about as frightening as the quick, merciful death I'd expected." Instead of a "quick and merciful death", Reader's Digest Condensed Books chose the book for reprinting in part, which gave it a wide readership immediately. Since the original publication, the book has never been out of print.
Output:
What date did To Kill a Mockingbird begin to circulate?