A History of Short Words

From the New York Times Crossword Puzzle

OTS

Fri, 19 Nov '21
Periods that aren't usually added, for short?
Thu, 5 Aug '21
"Fourth periods" in hockey, for short
Tue, 15 Jun '21
Nerve-racking parts of games, in brief
Tue, 6 Apr '21
Ends of some exciting games, for short