Historical clue formulations

• Book with the line "My father can read big words, too. / Like Constantinople and Timbuktu" — 2015-11-21
• Book whose last line is "Ask me tomorrow but not today" — 2015-09-05
• "Red Ned Ted and Ed in bed" — 2015-07-14
• Dr. Seuss title — 2010-09-28
• Dr. Seuss classic — 1996-05-04