The weathervane is most often thought of as a metal rooster on the top of a barn that points in the direction of the blowing wind. That is a weathervane point in the direction of the origin of the wind. A compass rose is fixed below the rooster and points in the direction of the eight cardinal points of the earth. North, South, East, West and the four in betweens. Once long ago, it was believed that the winds were gods and in that ancient time, flags were used to tell archers the direction of the going wind. Aiming against the wind in archery and in favor of the wind in sailing are important things for civilizations at their birth.
A genius astronomer and architect from Greece built the oldest weathervane from those myths and legends, to immortalize them in stone and bronze. That was more than 2000 years ago, but just a little over a thousand years ago, the rooster became an immortalized sculpture upon the tops of domes and cupolas in all the world of Christendom, when the pope proclaimed that in honor of the apostle Peter, each church should have a rooster weathervane to remind followers. In Luke 22:34 at the last supper, Christ prophecies that Peter will deny he is a...