A History of Short Words

From the New York Times Crossword Puzzle

EIN

Tue, 22 Feb '22
German article
Sun, 30 Jan '22
A, in Berlin
Sun, 14 Nov '21
A, in Aachen
Mon, 25 Oct '21
German article
Sun, 28 Mar '21
Austrian article
Thu, 4 Feb '21
Fig. on some I.R.S. forms