Don Herrin

A 1924 wedding ceremony. Photo courtesy of the Harris & Ewing Collection via Library of Congress. Via RNS

On Valentine’s Day, American husbands and wives of every age, faith, and region will shower their beloveds with symbols of undying affection — flowers, chocolates, moonlit dinners, kisses.

The annual Feb. 14 lovefest is also a popular time for elaborate engagements, with picturesque proposals and pricey jewelry.

But any link between love and matrimony is relatively recent, said Stephanie Coontz, who teaches history and family studies at the Evergreen State College in Olympia, Wash.

And a radical one at that.