A History of Short Words

From the New York Times Crossword Puzzle

SPF

Wed, 10 Nov '21
Lotion letters
Tue, 9 Nov '21
UV blocking measure
Sun, 17 Oct '21
It guards against UVB
Mon, 27 Sep '21
Tanning lotion spec
Mon, 20 Sep '21
Letters on a bottle of tanning lotion
Sun, 12 Sep '21
Burn prevention meas.
Sat, 10 Jul '21
Block letters?
Mon, 24 May '21
Tanning lotion fig.
Sun, 4 Apr '21
Letters on some foundations
Mon, 1 Mar '21
Tanning lotion stat