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For thousands of years, people used sundials to tell the time. The first sundials were used more than 3,500 years ago in Egypt.

The sundial showcased in this video was designed by Otto Klotz, an astronomer who worked at the Dominion Observatory. It was made by Pritchard and Andrews, a company from Ottawa, Canada. This sundial was made over 100 years ago for a Member of Parliament, W. Paterson, who lived in Ottawa and later became a Senator.