A History of Short Words

From the New York Times Crossword Puzzle

RPI

Sun, 1 Aug '21
Tech sch. in Troy, N.Y.
Sun, 4 Jul '21
N.Y. tech school
Tue, 25 May '21
Tech sch. in Troy, N.Y.
Sun, 31 Jan '21
Oldest tech sch. in the U.S., founded in 1824
Tue, 26 Jan '21
Tech school in Troy, N.Y.