Asimov wrote the story in one sitting while visiting the Chicago, Illinois editorial offices of Universe on 7 April 1953.
ˈæzᵻmˌɑːf ɹˈoʊt ðə stˈoːɹi ɪn wˈʌn sˈɪɾɪŋ wˌaɪl vˈɪzɪɾɪŋ ðə ʃᵻkˈɑːɡoʊ, ˌɪlənˈɔɪ ˌɛdɪtˈoːɹɪəl ˈɑːfɪsᵻz ʌv jˈuːnɪvˌɜːs ˌɔn sˈɛvən ˈeɪpɹəl nˈaɪntiːnhˈʌndɹɪd fˈɪfti θɹˈiː.