A Brief History of Grandfather Clocks
Since the beginning of civilization, humans have searched for a reliable way to keep track of the time. In the earliest days, months, seasons and years were tracked by careful monitoring of the phases of the moon. Later, the sun and stars were also used to help early people track the passing of time.
The Sumerians used the sundial to divide days into two-hour segments. The Egyptians created a device called Cleopatra