The first modern crossword puzzle appeared in the New York World on Dec. 21, 1913. And in the century that’s passed, crossword puzzles have become a daily habit for generations of newspaper readers. We’ll talk this hour about the history of our favorite time-killer with Alan Connor, author of The Crossword Century: 100 Years of Witty Wordplay, Ingenious Puzzles, and Linguistic Mischief (Gotham).