A History of Short Words

From the New York Times Crossword Puzzle

PLUTO

Thu, 23 Nov '23
Second-most massive of the solar system's known dwarf planets
Sun, 27 Nov '22
It has only one-sixth of the mass of Earth's moon
Wed, 4 May '22
Dog owned by a talking mouse
Sun, 29 Aug '21
Largest object in the Kuiper belt
Fri, 2 Jul '21
Classic Disney character who never speaks