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Book, 2005
Current format, Book, 2005, , Available .
Book, 2005
Current format, Book, 2005, , Available . Offered in 0 more formats
People used sundials and calendars to keep track of time long before the invention of stylish wristwatches and radio alarm clocks. This book provides kids with an in-depth look at the development of both ancient and modern-day timepieces.
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