Valentines

Photos: The evolution of Valentines

A display at the History Museum at the Castle in Appleton, Wis., showcases elaborate paper lace valentines and 1910 postcards.

Punxsutawney Phil, the weather prognosticating groundhog, takes a bite out of the gloved hand of handler Ron Ploucha during the 129th celebration of Groundhog Day on Gobbler's Knob in Punxsutawney, Pa. Monday, Feb. 2, 2015. Phil saw his shadow, predicting six more weeks of winter weather. (AP Photo/Gene J. Puskar)

Photos: Groundhog Day

Phil saw his shadow, predicting six more weeks of winter weather.