category: notion
Assyrian king Shalmaneser III(right) shakes the hand of Babylonian king Marduk-zakir-shumi I (left), 9th century BCE. On display at the Iraq Museum in Baghdad, Iraq.
For centuries it was believed that handshake started in Babylon as an either a peace sign or bounding sign, until we discovered that the aliens hiding amongst us could hide their 6th fingers to the eyes but not to the touch !