But just how, exactly, did it track time?

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

Scientists Found a 12,000-Year-Old Monument—Turns Out It May Be Humanity’s Oldest Calendar

Here’s what you’ll learn when you read this story: Carvings on a 12,000-year-old monument in Turkey appear to mark solar days and years, making it possibly the oldest solar calendar in ancient ...