Philip Yoder! age 9, of Allentown, Penna. '

When did man start to measure time?

The very first men on earth knew something about the passing of time. They knew that the dark, sleepy night was followed by the bright, busy day! They knew that springtime and summers, fall 'and :winter followed each other through the year. They noticed that the golden moon grew big and then wasted away in a certain number of days and nights. They knew that a person grew from childhood to old age in a lifetime.

The first clock was most likely a tall stick stuck into the ground. The time of day was measured from the length of its shadow. Some 3,000 years ago the Chinese learned to measure time from slowly dripping water. The ancient Egyptians, the Greeks and the Romans also used water clocks. Time also was measured from a burning candle. The ancestor of our clocks and watches, complete with wheels and works, was invented about 600 years ago.