Timeline Worksheet: July 30, 1935, Paperback Book Revolution On July 30, 1935, Penguin published its first paperback, ushering in the modern paperback revolution. Use our How to Write A Story checklist to help your students write a story of their own. Timeline Worksheet: June 30, 1935, How to Write A Story Checklist Blank printable timeline index card Printable timeline index card (Fits Literary timeline.) If you are new to this series, visit my introduction to timeline index cards. Return to the Timeline-AD.