A History of Short Words

From the New York Times Crossword Puzzle

SIGNS

Tue, 28 Jun '22
Taurus, Virgo, Libra, etc.
Mon, 6 Sep '21
Stop and Yield
Sat, 26 Jun '21
"Stop" and "Open," e.g.
Mon, 12 Apr '21
Touches one's chin and moves the hand down to say "Thank you," for example