To tell time they were used thousands of years ago. It was used to see the time by the sun's ray's shadow. The Romans were the first to create the very first sundial called the gnomon. It was basically a stick in the ground with markings around it so as the shadows hit the markings whatever number that marking was is what time it is.
They knew what time it was because they could tell the time by looking at the sun. Whatever angle the sun was at, told them the time. So, they just looked at the sun for the time when clocks were first invented. Or they just used a sundial.
The sundial
Clocks have been around since ancient times. The origins are not exact but it is widely known that the sundial was the first instrument used to measure time. Using the exact point of midday the sundial morphed into the obelisk that the Egyptians used to pinpoint midday.
In the past, a common time measuring instrument was the sundial. Today, the usual measuring instruments for time are clocks and watches. For highly accurate measurement of time an atomic clock is used. Stop watches are also used to measure time in some sports.
a sundial is a device that was used to tell time a long time ago. here is a vid that will tell you all about them: http://www.youtube.com/watch?v=tI0GqYJha1Q
He used a portable sundial.
A sundial
Because, they used a sundial to tell date and time.
sundial
A sundial is used to tell time by using the position of the sun to cast a shadow on a marked surface. The shadow moves around the dial as the sun moves across the sky, indicating the time of day.
To tell time they were used thousands of years ago. It was used to see the time by the sun's ray's shadow. The Romans were the first to create the very first sundial called the gnomon. It was basically a stick in the ground with markings around it so as the shadows hit the markings whatever number that marking was is what time it is.
It was used to tell the time and knowing the time even the aproximate time is quuite useful
Well, for starters you just used sundial in a sentence. But another sentence could be... Sundials help you tell time.
the ancient Greeks used sundials to tell time.
The sun dial was used for telling time. The sundial would cast a shadow so people know what time of day it was by where the shadow fell.
The first sundial was used by the ancient Egyptians around 3500 BC. They relied on the shadow cast by a stick placed in the ground to track the movement of the sun and tell time.