A History of Short Words

From the New York Times Crossword Puzzle

SEPTA

Sat, 31 Jan '26
Bodily partitions
Thu, 4 Jan '24
Philadelphia train system
Sun, 19 Feb '23
Places for some piercings
Sun, 26 Jun '22
Partitions between nostrils
Fri, 24 Jun '22
BART : San Francisco :: ___ : Philadelphia