A History of Short Words

From the New York Times Crossword Puzzle

GAPS

Sun, 24 Mar '24
Braces might fix them
Wed, 24 May '23
Parts of some smiles
Tue, 28 Mar '23
Spaces to be filled, say
Sat, 4 Mar '23
Targets of some orthodontic treatments
Tue, 6 Jul '21
Spaces between teeth