16-year-old Helena Muffly wrote exactly 100 years ago today:
Tuesday, May 9, 1911: By jingo if I haven’t forgotten what I did today. Just what I did several days ago. You see, sometimes it happens that I don’t always feel like writing in this diary every evening, so I wait until the next evening and make two entries at one time.
Her middle-aged granddaughter’s comments 100 years later:
Aha!—just as I thought. Grandma did sometimes write a diary entry the following day. For example, on Feb 23 she had written about going to sleep and then the entry on the 24th talked about waking up. It just seemed as if both entries had actually been written on the 24th.