A History of Short Words

From the New York Times Crossword Puzzle

YRS

Sun, 27 Apr '25
Junior and senior: Abbr.
Mon, 21 Apr '25
12-mo. periods
Mon, 10 Feb '25
Calendar spans: Abbr.
Sun, 2 Apr '23
Cornerstone figs.
Sun, 4 Dec '22
Times of one's life: Abbr.
Tue, 22 Jun '21
2019, 2020 and 2021: Abbr.
Thu, 20 May '21
Jr. and sr.
Thu, 18 Mar '21
Alumni divs.
Fri, 5 Mar '21
'21, '22, etc.