Carvings on a 12,000-year-old monument in Turkey appear to mark solar days and years, making it possibly the oldest solar ...

A new year is a good time to look at how people have marked the passage of days, months, and years. Calendar systems include solar and lunar calendars that guide planting and harvest as well as ...

I encountered unrecorded history, if that is not a contradiction in terms. The other item was a pictographic calendar begun by an unknown person and carried on by Poolaw. It covers just more than ...