A History of Short Words

From the New York Times Crossword Puzzle

INST

Wed, 16 Aug '23: Part of M.I.T.: Abbr.
Sun, 23 Apr '23: Part of M.I.T.: Abbr.
Tue, 20 Dec '22: The "I" of M.I.T.: Abbr.
Mon, 7 Mar '22: The "I" of M.I.T.: Abbr.