A History of Short Words

From the New York Times Crossword Puzzle

MADAM

Sat, 7 May '22
___ C. J. Walker, first American woman to become a self-made millionaire, per Guinness
Fri, 25 Mar '22
Palindromic title
Sun, 30 Jan '22
___ President
Wed, 7 Jul '21
Palindromic term of address
Sat, 1 May '21
Part of a diplomatic address, maybe