August 31 Stock Videos

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the calendar: our record of time - part 3 of 18. film highlights the development of the calendar from prehistoric times -- when man counted days by the rising and setting of the sun -- to the practical calendar we use today - august 31 stock videos & royalty-free footage
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The Calendar: Our Record of Time - part 3 of 18. Film highlights the development of the calendar from prehistoric times -- when man counted days by the rising and setting of the sun -- to the practical calendar we use today
Calendar, Fourth of July, December
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