Timekeeping Through History

APeople have always wanted to know the time. Long ago, they looked at the sun. The sun moved across the sky and showed the time. This was a simple but useful method. Many people used this idea every day.

BLater, people made sundials. A sundial is a tool that uses a shadow to show the time. People put sundials in markets and open places. But sundials did not work at night. They also did not work when the sky was cloudy.

CAfter sundials, people used water clocks. Water moved slowly from one container to another. The water level showed how much time had passed. Water clocks worked at night and inside buildings. They were very popular in ancient times.

DThen, people invented mechanical clocks. These clocks used small moving parts inside. They were more accurate than water clocks. People put big clocks in towers and public places. Everyone in the town could see the time.

EToday, we are using digital clocks and mobile phones to check the time. These devices are very accurate and easy to use. Scientists are going to make even better clocks in the future. Timekeeping technology is always changing. It is going to keep helping people in their daily lives.