Who were the first astronomers? 

Did the builders of Stonehenge design it as a precise calculator or calendar? 

How did ancient Mayan priests compile a book of lunar tables so accurately that their error is only two hours in every five centuries?

Some researchers claim that the mysterious stone circles and tombs scattered throughout northwest Europe were sophisticated observatories or calculating devices.

The most interesting question is how prehistoric observations were carried out and how the skywatchers connected their skills with both everyday needs and spiritual impulses, and above all satsifying their curiosity as to our cosmic heritage in the dead stuff of the universe.