Archaeologists have discovered the world’s oldest calendar in Göbekli Tepe in southern Turkey . The calendar is in the form of  ancient carving of the sun, moon, and various constellations sits on a pillar.

• The Calendar 12,000 years old.
• Researchers believe that ancient people used this so-called lunisolar calendar to mark the changing of the seasons.
• Apparently, it even recorded a falling comet. If the researchers are correct, this predates any other such calendar by thousands of years.
• The Göbekli Tepe site is home to the world’s oldest known manmade structures. They predate Stonehenge by over 6,000 years. The site is a complex of temple-like enclosures whose exact purpose is unclear.