"How We Celebrate Valentine’s Day" dives into the world’s most loved (and sometimes loathed) holiday. From ancient Roman rituals to Saint Valentine’s martyrdom and Chaucer’s romantic poetry, we explore how the day became a celebration of love. Discover Cupid’s evolution, China’s Qixi Festival, Denmark’s Gaekkebrev, Japan’s chocolate politics, and South Korea’s Black Day. With mass weddings, love locks, and Galentine’s Day, Valentine’s shows that love makes the world a more beautiful place.