How Ancient Stones Helped Track the Seasons | NOVA
WKNO
Published April 19, 2024 at 4:00 AM CDT
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Along the river Gambia in Senegal, there are more than a thousand stone circles. The people who placed these stones would have observed how the locations of sunrise and sunset varied over the year. By aligning the stones to these points, they would’ve been able to track the seasons.