A History of Short Words

From the New York Times Crossword Puzzle

Words of five or fewer letters since August 15, 2006

atom

Mon, 18 Dec '06
Nuclear energy source
Wed, 6 Dec '06
Site of tiny orbits
Sun, 19 Nov '06
Bit
Tue, 17 Oct '06
Positron's place
Sun, 1 Oct '06
Tittle