<documents_info>The Astronomical Significance of Stonehenge,The Mayan Calendar and its Relation to Astronomy,Egyptian Pyramids and their Alignment with the Stars,Navigating by the Stars: Ancient Polynesian Techniques,Astrology: History and Beliefs</documents_info>
<query>How did ancient civilizations use astronomical observations for navigation and timekeeping?</query>
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<documents_info>The Astronomical Significance of Stonehenge,The Mayan Calendar and its Relation to Astronomy,Egyptian Pyramids and their Alignment with the Stars,Navigating by the Stars: Ancient Polynesian Techniques,Astrology: History and Beliefs</documents_info>
<query>How did ancient civilizations use astronomical observations for navigation and timekeeping?</query>
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assistant
How did ancient civilizations use astronomical observations for navigation and timekeeping?
The Astronomical Significance of Stonehenge,The Mayan Calendar and its Relation to Astronomy,Egyptian Pyramids and their Alignment with the Stars,Navigating by the Stars: Ancient Polynesian Techniques,Astrology: History and Beliefs