Every Time You Shake Someone's Hand, You're Performing a 600-Year-Old Weapon Check
The handshake is so universal that it barely registers as a choice anymore — it's just what you do when you meet someone. But the gesture has a specific origin, a practical one, rooted in a world where the person extending their hand toward you might also be concealing a blade in it. The story of how a medieval security check became the world's default greeting is stranger than it sounds.