A History of Short Words

From the New York Times Crossword Puzzle

SFO

Fri, 19 Nov '21
NorCal airport
Tue, 12 Oct '21
Bay Area airport code
Sat, 11 Sep '21
United Airlines hub, for short
Tue, 17 Aug '21
LAX's counterpart in northern California
Mon, 3 May '21
Bay Area hub, for short
Tue, 23 Feb '21
Hub NW of LAX