A History of Short Words

From the New York Times Crossword Puzzle

RRS

Wed, 15 Mar '23
B&O and others
Sun, 20 Nov '22
Monopoly properties that don't get hotels, for short
Sun, 9 Oct '22
B&O and Reading: Abbr.
Tue, 4 Jan '22
B&O and Short Line: Abbr.
Mon, 6 Dec '21
$200 Monopoly properties: Abbr.
Sun, 15 Aug '21
Some $200 Monopoly properties, in brief