It came when a 24 year old State Representative in the Tennessee legislature changed his vote and broke a tie.
Harry T. Burn was the youngest member of the body and had voted against ratification several times.
But then, shortly before the decisive vote he received a note from his mother, which read in part:
"Hurrah and vote for Suffrage and don't keep them in doubt.
With lots of love, Mama"
Burn later inserted a statement in the House Journal: "I knew that a mother's advice is always safest for a boy to follow, and my mother wanted me to vote for ratification."
So let's issue a thank you to Febb Burn of Niota, Tennessee.
Mama's advice prompted a momentous event in American history.