The history of the handshake dates back to the 5th century B.C. in Greece. It was a symbol of peace, showing that neither person was carrying a weapon. During the Roman era, the handshake was actually more of an arm grab.
When did handshaking become popular?
Except. Historians who have pored over old etiquette books have noticed that handshaking in the modern sense of a greeting doesn't appear until the mid-19th century, when it was considered a slightly improper gesture that should only be used with friends [PDF].
How did hand shake start?
Answer: This custom started in medieval times. The world was an unsavory place back then, and people often concealed weapons in their hands. The handshake was a way of affirming that neither you nor the person you were greeting was carrying anything intended to harm. Over time, it evolved into a polite greeting.