The History of the Earliest Clocks

The earliest clocks were sundials, which were invented in ancient Egypt around 3500 BC. Sundials work by measuring the angle of the sun's rays to tell the time. They are not very accurate, but they were the best way to tell the time for thousands of years.

Water clocks were invented in ancient Greece around 325 BC. Water clocks work by measuring the flow of water from one container to another. They are more accurate than sundials, but they are still not very precise.

Mechanical clocks were invented in the 13th century AD. Mechanical clocks use a pendulum or a balance wheel to regulate the movement of the hands. They are much more accurate than sundials or water clocks, and they are still used today.

The first digital clocks were invented in the 20th century AD. Digital clocks use a quartz crystal to regulate the movement of the hands. They are the most accurate type of clock, and they are used in a wide variety of applications.

Today, clocks are used for a wide variety of purposes. We use them to tell the time, of course, but we also use them to control traffic lights, to time sporting events, and to set alarms. Clocks are an essential part of our modern world.