A History of Short Words

From the New York Times Crossword Puzzle

STYX

Thu, 7 Jul '22
River on which Greek deities swore their oaths
Thu, 24 Mar '22
"Mr. Roboto" band
Mon, 8 Nov '21
Mythological river around the underworld
Thu, 4 Feb '21
River that comprises the fifth circle of Dante's Inferno