A History of Short Words

From the New York Times Crossword Puzzle

IMO

Sun, 21 Nov '21
Texter's "I think ..."
Fri, 17 Sep '21
Succinct "I think"
Tue, 6 Jul '21
"The way I see it ...," online
Sat, 1 May '21
Online qualifier
Sun, 17 Jan '21
Initialism that can include an "h" for "humble"