er ways of measuring time. (Show an hourglass.) Sometimes water was used instead of sand (in an instrument called the clepsydra) and time was measured by the falling of drops of water. None of these ways were very convenient, however, and menwere constantly trying to make something better for…
Kindergarten · Education
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![An illustration from [Catalog]. (1908)](https://img.insideoutlibrary.com/img/200/ia-catalog00macy-283-809.webp)
