A History of Short Words

From the New York Times Crossword Puzzle

AUS

Wed, 3 Nov '21
Schwarzenegger's birthplace: Abbr.
Mon, 26 Apr '21
Vienna's home: Abbr.
Fri, 5 Mar '21
Northern neighbor of 29-Across: Abbr.
Thu, 21 Jan '21
Where some things are really hopping?: Abbr.