This week in history: Groundhog Day

This past Sunday, the U.S. and Canada celebrated Groundhog Day (along with the Super Bowl). According to legend, if a groundhog sees its shadow on February 2nd, after emerging from its burrow, winter will continue for six more weeks. If the groundhog sees no shadow, spring will arrive early. So Groundhog Day involves a reversal of assumptions: clear weather on 2/ 2 means more winter, since clear skies lead to shadows, while cloudy weather means an early spring. Continue reading “This week in history: Groundhog Day”