"A methodical man, John Shade usually copied out his daily quota of completed lines at midnight but even if he recopied them later, as I suspect he sometimes did, he marked his card or cards not with the date of his final adjustments, but with that of his Corrected Draft or first Fair Copy. I mean, he preserved the date of actual creation rather than that of second or third thoughts. There is a very loud amusement park right in front of my present lodgings."

        Vladimir Nabokov. "Pale Fire"