Style Invitational Week 1052: Clue Us In -- a backward crossword; plus Ask Backwards

Exactly 100 years ago Saturday, the New York World published a diamond-shaped "word-cross" puzzle containing such clues as "a talon" and "the fibre of the gomuti palm," and untold millions of enthusiasts have been filling in little squares with the word for the fibre of the gomuti palm ("doh") ever since.